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全部话题 - 话题: specificly
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z*******n
发帖数: 1034
1
http://www.informit.com/articles/printerfriendly/2211695
Introduction to "The Java Language Specification, Java SE 8 Edition"
By James Gosling, Gilad Bracha, Alex Buckley, Bill Joy, Guy L. Steele
Date: Jun 12, 2014
The Java® programming language is a general-purpose, concurrent, class-
based, object-oriented language. It is designed to be simple enough that
many programmers can achieve fluency in the language. The Java programming
language is related to C and C++ but is organized rather dif... 阅读全帖
E***s
发帖数: 855
2
from www.hdmi.org
Overview of HDMI 2.0
What is HDMI 2.0?
HDMI 2.0, which is backwards compatible with earlier versions of the HDMI
specification, significantly increases bandwidth up to 18Gbps and adds key
enhancements to support market requirements for enhancing the consumer video
and audio experience.
What’s new in HDMI 2.0?
HDMI 2.0 significantly increases bandwidth to 18Gbps and includes the
following advanced features:
Resolutions up to 4K@50/60 (2160p), which is 4 times the clarity of
... 阅读全帖
E***s
发帖数: 855
3
from www.hdmi.org
Overview of HDMI 2.0
What is HDMI 2.0?
HDMI 2.0, which is backwards compatible with earlier versions of the HDMI
specification, significantly increases bandwidth up to 18Gbps and adds key
enhancements to support market requirements for enhancing the consumer video
and audio experience.
What’s new in HDMI 2.0?
HDMI 2.0 significantly increases bandwidth to 18Gbps and includes the
following advanced features:
Resolutions up to 4K@50/60 (2160p), which is 4 times the clarity of
... 阅读全帖
h*******o
发帖数: 4884
4
老板打算合作去做一个brain specific的knockout,还要inducible, 对方说做Cre-
loxp, 然后用tamoxifen 去induce, 要求我们提供一个brain specific的gene 去放
Cre -ER
我查了几个常用的brain specific的promoter
BDNF,但是似乎不是brain specific, 因为retina, prostate,kidney 也表达
CaMKII BAC, 这个貌似用的人不多,但是好像有文献说适合brain specific的knockout
不是做这个的,对于KO的知识仅限于Cre LoxP了.
有没有好心人给点建议, 该用那个 gene来放Cre-ER?谢谢!
y*b
发帖数: 3190
5
来自主题: PhotoGear版 - Canon 5DX and 5DC Specification
"We don’t know the credibility of the rumor but we have seen the same rumor
posted by various rumor mills and users of forums worldwide so we have
finally decided to put it on our website too.
Take a look at the rumored specification of the 5DX camera.
28MP sensor
12fps
Dual Pixel AF III
New and more advanced AF system
Anti-flickr technology (seen first on the EOS 7D Mark II)
Crop mode (featured on the EOS 5Ds)
ISO 100-204.800 (expandable to 409.600)
to be announced at Canon Expo or Photoplus at... 阅读全帖
y*b
发帖数: 3190
6
来自主题: PhotoGear版 - Canon 80D Rumored Specification Q2 2016
Canon 80D Rumored Specification, Coming in Q2 of 2016
"Canon 80D core specification tossed over the web via a dpreview forum
member MichaelVadon, earlier he also published lot of info realted to 5D
Mark III successor you can see it here [Canon 5D Mark IV – The Rumor Saga
Continues]
Canon 80D Rumored Specification
24.2MP APS-C CMOS Sensor & Digic 6+ or 7 Image Processor
3.0″ Vari-Angle Touchscreen LCD Monitor
Full HD 1080p Video Capture
49-Point AF System
Hybrid CMOS AF III
Built-In Wi-Fi Connect... 阅读全帖
y*b
发帖数: 3190
7
来自主题: PhotoGear版 - THE CANON EOS-1D X MARK II SPECIFICATIONS?
"The following specifications have appeared on the DPReview forum and via
Digicame-Info.
Specifications
20.2MP CMOS sensor
Dynamic range improvement
Dual pixel CMOS AF
61-point AF system, which range is expanded. 41-point cross-type. All of the
distance measuring point can be selected
With lighting AF point red
F8 even 61 points all of the distance measuring point can be selected
AI AF accuracy and motion tracking has improved Servo AF III +
Dual DIGIC6 + processor
New mirror drive system that e... 阅读全帖
d****7
发帖数: 109
8
来自主题: Biology版 - non strand specific RNA-seq数据分析
Non-strand specific就不用说了,最简单了,照着protocol来,没啥问题,问题在于
strand specific:
1. strand-specific or not 不影响mapping,因为不管用什么protocol,出来的reads
map到哪条strand都算。再算gene expression的时候才会用到strand information,
具体怎么count reads to gene, 这个要取决于你的strand specific library prep
protocol
2. 拿tophat/bowtie来说,mapping的时候有一个选项--library-type,这个怎么选都
不影响mapping,但是一定要注意,接下来用cuffilink/cuffdiff和htseq-count之类的
,这个--library-type一定要添对了,这个影响gene expression的counting
3. 如何选--library-type?总的来说,如果先测序的reads(R1 reads)是从first-
strand (first st... 阅读全帖
l****z
发帖数: 29846
9
By AMY WESTFELDT, Associated Press
December 1, 2011
NEW YORK (AP) — The tent cities in New York, Los Angeles and Philadelphia
have faded away. And now Occupy Wall Street protesters are starting to talk
more about the movement's specific goals.
Protesters interviewed by The Associated Press have a wish list of demands
that they hope will help end economic inequality. They range from student
loan reforms and reinstating banking regulations to the plea to act with a
moral conscience.
The protesters... 阅读全帖
d***u
发帖数: 84
10
2012年夏天过来NYC,算是part-year resident。
不知道IT-220里面的Line 16 Specific deduction怎么填
Nonresidents and part-year residents – Enter the amount that
bears the same ratio to $5,000 ($2,500 for married individuals
filing a separate return) as the total New York tax preference items
(line 15, Column B) bears to total tax preference items (line 15,
Column A), computed as if a resident for the tax year. The
specific deduction cannot exceed $5,000 ($2,500 for married
individuals filing a separate return).
不管是tot... 阅读全帖
t******k
发帖数: 5617
11
羡慕嫉妒恨啊。。。
Here are some more detailed Nikon D750 specifications (now including
dimensions and weight), the price is $2,300 for body only:
Tilt the screen, including a change in the diaphragm in the live view mode,
Wi-Fi, and D610
Size: 5.5 "x 4.4" x 3.1 "(139.7 x 111.76 x 78.74mm)
Weight: 1 lb 10.5 oz (751.26g)
24.3 megapixel FX CMOS sensor specifications
EXPEED 4 Image Processor
1080p 24/25/30/50 / 60p
Recording ISO, shutter speed, and aperture manually control
Uncompressed HDMI (8-bit 4: 2: 2)... 阅读全帖
y*b
发帖数: 3190
12
来自主题: PhotoGear版 - Sony RX100 M4 Leaked Specification
zz
"We have just received first set of RX100 M4 specification by a new source,
take a look at the rumored specification below..
New or improved stuff in the RX100 iv rr RX100 m4 is:
– 4k Video at 30 FPS (that one is an easy one)
– Improved Zoom to 24-100mm (just over 4x zoom range)
– Articulated Touch screen with touch screen focus – but still no touch
menu
– restyled button layout – now with 2 dials on top (similar to the a6000)
– New and improved sensor with spherical shape and phase Autofocus... 阅读全帖
y*b
发帖数: 3190
13
来自主题: PhotoGear版 - CANON EOS 80D SPECIFICATIONS
The specifications for the Canon EOS 80D have leaked ahead of the official
announcement, which is expected soon.
Canon EOS 80D Specifications:
24.2mp APS-C
Dual Pixel AF
7fps Shooting in live view
5fps in AIS
45 AF Points ( All Crosstype)
ISO 100-16000
Anti-Flicker
100% Viewfinder
3″ Vari-Angle LCD
Touchscreen
FullHD at 60fps Video
Time-Lapse
HDR
Creative Filters
Wifi
NFC
Remote hooting with smartphone
Read more: http://www.canonrumors.com/canon-eos-80d-specifications/#ixzz40J4GlcSJ
y*b
发帖数: 3190
14
来自主题: PhotoGear版 - (CR2)Canon EOS 6D Mark II Specifications
zz from CR
"Below is updated specifications from various sources, so we’re not rating
this [CR3] at this time. Some of this information does come from very solid
sources.
Canon EOS 6D Mark II Specifications: (specifications in italics are CR2 for
the moment)
26mp CMOS Sensor
DPAF
DIGIC 7
1080P 60p (sadly, no 4K)
45pt AF (We’re not sure if they’re all cross-type)
Wi-Fi
Bluetooth
NFC
3″ Vari-Angle LCD
Touchscreen
Approx 100% viewfinder
HDR Movie
Time Lapse Movie
A slightly taller and deeper body o... 阅读全帖
f*****h
发帖数: 228
15
来自主题: Biology版 - non strand specific RNA-seq数据分析
版上大牛,我现在想分析一些non strand specific RNA-seq数据,不知道在用Bowtie
,TopHat,Cufflinks是都要注意些什么,另外,这些软件都是如何区分strand
specific和non specific的数据的,是正反strand都align上吗?还是在做
differential expression analysis的时候才考虑进去,本人初入门,多谢指教。
c*********r
发帖数: 1312
16
来自主题: Biology版 - non strand specific RNA-seq数据分析
http://www.nature.com/nprot/journal/v7/n3/full/nprot.2012.016.h
我不是大牛,也是刚刚开始做NGS数据分析。上边这个link是个很好的Bowtie Tophat
Cufflinks pipeline。你可以参考一下,跟着做不太难。
就我的理解,non strand specific基本没问题,现在大多数RNA-seq数据好像都是默认
non strand specific。往往strand-specific才需要在分析时额外加一些option。
有空多交流。happy data mining!

Bowtie
b*******1
发帖数: 55
17
今天Recruiter打电话过了一下onsite的流程,有三轮coding,一轮system design,还
有一轮domain specific,之前没有听说过,有没有哪位大哥面过domain specific?
t*****n
发帖数: 1318
18
来自主题: Reunion版 - 请教160表上的specific travel plan
【 以下文字转载自 Visa 讨论区 】
发信人: twoyuan (twoyuan), 信区: Visa
标 题: 请教160表上的specific travel plan
发信站: BBS 未名空间站 (Mon Mar 2 21:38:47 2015, 美东)
给父母办b2签证,如果邀请信上写主要过来旅游,那160表上这个问题Have you made
specific travel plans?一般是回答yes还是no?
多谢!
l*****i
发帖数: 669
19
来自主题: StartUp版 - Specific effective date in the future
在税版问过这个问题,再在这里讨论一下:
如果成立一个LLC公司,并且选择specific effective date在2013年12月01日而不是
real filing date,那么在2013年12月01日之前,组织运营这个公司的消费是否可以在
schedule C上面作为business expenses给deduct掉?
那么如果选择2014年1月1日作为specific effective date呢?在federal tax return
方面究竟有什么区别?是不是2013年的任何消费都不能作为deduction了呢?
想讨论一下这个问题。
z***e
发帖数: 5393
20
公司小,似乎没搞过这种,现在lawyer让公司打绿卡广告。HR负责的那个说她写个草稿
,让我看看合不合适,因为技术细节她也不清楚,目的就是把job写得非常specific,
非我莫属那种。
有几个问题:
1. HR说她想把position都不写成software engineer相关的,不然会受到一大堆resume
.我当然不反对她如果要改成researcher之类的东西,但是改title会不会对申请绿卡有
影响?毕竟我h1b是申请的software engineer.
2. job description怎么才能尽量specific?说要求在conference上发过paper也可以
吗?要求有phd?还可以说要求懂chinese?还可以说要求在微软工作过不,比如prefer
prior working experience in MSFT什么的...?或者限定工作经验年限恰好在我的区
间内?还可以说要求有在windows phone上publish过app这样行不行?
没搞过,小公司就是麻烦...多谢。
a*****p
发帖数: 1285
21
找了perm来看,JD下面有specific skills。AC21除了需要match JD, 这个specific
skills
也需要match吗?
JD都是很笼统的。
h*d
发帖数: 19309
22
来自主题: TVGame版 - Nintendo 3DS tech specifications News
Nintendo 3DS tech specifications News
DS News by Tom Bramwell
Today 19:05
Nintendo has issued technical specifications for the 3DS, which it unveiled
earlier in Los Angeles.
The PDF issued after the platform holder's E3 conference says the 3DS is 5.3
inches wide, 2.9 inches long and 0.8 inches tall, and weighs approximately
eight ounces.
The widescreen 3D LCD is 3.53 inches corner to corner and runs in 800x240
resolution ("400 pixels are allocated for each eye to enable 3D viewing").
The touch s
F**M
发帖数: 518
23
来自主题: PhotoGear版 - Nikon D750 specifications
http://nikonrumors.com/2014/09/10/nikon-d750-specifications-lea
Nikon D750 FX 24.3 MP full frame sensor features compact, lightweight,
energy efficient design, built-in flash double SD card slot
Tiltable 3.2-inch RGB monitor with approximately 1.2 million pixels
Robust design and expensive sealing against weather influences
New, improved mirror / shutter mechanism "AF system with 51 focus areas"
RGB sensor with approx 91,000 pixels and light-weighted metering option
Burst rate of 6.5 frames/s
24... 阅读全帖
y*b
发帖数: 3190
24
来自主题: PhotoGear版 - (CW3)Canon EOS 5D Mark IV Specification
(CW3) Canon EOS 5D Mark IV Specification Surface (24MP, Dual Pixel AF, 4K,
Anti-Flickr, New AF System)
http://www.canonwatch.com/cw3-canon-eos-5d-mark-iv-specificatio
"I got some specifications (thanks) for the upcoming Canon EOS 5D Mark IV (
we expect the announcement in August 2015).
It’s not much and it is what common sense easily suggests the EOS 5D Mark
IV might feature. The 4k rumor is not new. The rumor says the EOS 5D Mark IV
will sport all the latest Canon technology, and lists (I give ... 阅读全帖
y*b
发帖数: 3190
25
来自主题: PhotoGear版 - Nikon D5 detailed specifications
Here is a new, more detailed set of Nikon D5 specifications (the official
announcement should be tonight around midnight EST):
Two D5 body types: D5 XQD-type and D5 CF-type
New 20.82 MP CMOS sensor
EXPEED 5
4k video
153 AF points, 99-point cross sensor, F8 corresponding 15 points
Continuous shooting (continuous shooting up to 200 frames in 14bit lossless
compression RAW): 12 fps in the AF / AE tracking
Continuous shooting speed at the time of the mirror up to 14 fps (AE / AF
fixed)
Highest ISO: ... 阅读全帖
y*b
发帖数: 3190
26
来自主题: PhotoGear版 - CANON SPEEDLITE 600 EX II-RT SPECIFICATIONS
"We reported a few days ago that Canon was going to announce a follow-up to
the Speedlite 600 EX-RT, and the specifications have now leaked out ahead of
the imminent announcement.
Speedlite 600EX II-RT (Google translated)
Covers the angle of view of 20mm-200mm
Coverage of 197ft / 60M (ISO100)
Continuous firing is 1.5 times faster from 1.1 (CP-E4N 2 times faster at the
time of use)
Up to 5 can control the flash of the group
Dust and water resistent
The new design of the accessories group
Dot matr... 阅读全帖
h***e
发帖数: 20195
27
【 以下文字转载自 Mathematics 讨论区 】
发信人: looksmall (了了), 信区: Mathematics
标 题: 老张关于计算机网络的专利 “Network traffic specification”
关键字: 计算机网络 专利 computer network patent yitang zhang 张益唐
发信站: BBS 未名空间站 (Sat May 25 21:05:41 2013, 美东)
真心替老张高兴。
和唐朴祁一起发的。
"Network traffic specification, US 6373824 B1”
Publication date Apr 16, 2002
Filing date Dec 29, 2000
故老张有 挾太山以超北海 之能, 马工,矿工,非不能也乃不为也。
老张的历史使命就是做大问题,名垂青史。 前面的过程只是“故天将降大任于是人也
,必先苦其心志,劳其筋骨,饿其体肤,空乏其身,行拂乱其所为 ,所以动心忍性 ,
曾益其所不能。”
e******r
发帖数: 76
28
Effective C Sharp 50 Specific Ways to Improve Your C Sharp
这本书像 Effective C++ 55 Specific Ways to Improve 那样经典吗?
有没有其他 C Sharp 的经典书籍?
谢谢
w**********k
发帖数: 1135
29
Currently version 1.0 of the specification is available. Sun is now working
on future release of the specification.
w**********k
发帖数: 1135
30
The EJB specification mandates that you must use the RMI interfaces to
communicate with an EJB component. The EJB specification does not
mandate which wire protocol (like CORBAs IIOP) to use. If you were to
build an EJB server on top of CORBA, using RMI/IIOP would be a natural
fit.
d****d
发帖数: 214
31
Dear friends,
I would like to construct a B cell-specific retrovirus expression vector. I
am wondering whether any colleague has any suggestions or similar experience
. I would like to use Emu enhancer to confer the B cell-specificity. But I
am not sure whether use a VH promoter or any mini promoter will do the job.
Thanks!
h*******o
发帖数: 4884
32
没有完全看懂楼主的意思 , 个人理解
所有的One step RT-PCR kit都不可能用gene specific primer来做RT这一步
都是用的oligodT之类的primer来做RT,然后在接着标准的PCR而已
只不过对Taq的要求高一点而已,需要HotStart Taq
user自己加入自己的specific primer for gene of interest.
整个mixture其实就是先RT在PCR, 一般Protocol都要求42度1小时RT,然后直接65赌灭活,再开始PCR的cycle.
我以前用过很多One-step RT PCR,如果不出条带一般是自己的引物的问题
至于One-step realtime PCR 没试过

primer
l**********1
发帖数: 5204
33
OMG
LZ used degenerated primer for cDNA single strand synthesis
R U Seriously? an amateur molecular biologist LZ?
Please go to
//www.protocol-
online.org/prot/Molecular_Biology/RNA/Reverse_Transcription__RT____cDNA_Synthesis/index.html
RT reaction is also called first strand cDNA synthesis. Three types of primers can be used for RT reaction:
oligo (dT) primers, random (hexamer) primers and gene specific primers with each having its pros and cons.
or
/media.affymetrix.com/support/technical/usb... 阅读全帖
a*****s
发帖数: 131
34
来自主题: Biology版 - Tissue-specific promoter
我的transgenic mice的tissue-specific promoter太弱,怎么能够增强又保证tissue
specificity呢?
h*******o
发帖数: 4884
35
恩,我也是有这个疑问,
貌似大部分都是neuronal specific而不是brain specific的
M****e
发帖数: 178
36
Hello,
I have a quick question about the terms used in the field of analytical
chemistry. Any input is really appreciated.
We are trying to determine whether a patient has taken a certain drug (
compliance) by examining the existence of drug metabolite in patient's
plasma via mass spectrometry. To evaluate how accurately this MS procedure
predict patient's compliance, we treat MS as an assay and patient's
compliance as gold standard to calculate sensitivity and specificity. But
reviewers said 's... 阅读全帖
h***e
发帖数: 20195
37
【 以下文字转载自 Mathematics 讨论区 】
发信人: looksmall (了了), 信区: Mathematics
标 题: 老张关于计算机网络的专利 “Network traffic specification”
关键字: 计算机网络 专利 computer network patent yitang zhang 张益唐
发信站: BBS 未名空间站 (Sat May 25 21:05:41 2013, 美东)
真心替老张高兴。
和唐朴祁一起发的。
"Network traffic specification, US 6373824 B1”
Publication date Apr 16, 2002
Filing date Dec 29, 2000
故老张有 挾太山以超北海 之能, 马工,矿工,非不能也乃不为也。
老张的历史使命就是做大问题,名垂青史。 前面的过程只是“故天将降大任于是人也
,必先苦其心志,劳其筋骨,饿其体肤,空乏其身,行拂乱其所为 ,所以动心忍性 ,
曾益其所不能。”
y*****n
发帖数: 5016
38
i used xtgls with corr(psar1) to allow panel-specific autocorrelation.
however, the output doesn't show the values of panel-specific AR(1). is
there an option i can add to the commends so that i can see the values?
thank you.
G***G
发帖数: 16778
39
来自主题: Statistics版 - sensitivity and specificity
【 以下文字转载自 Biology 讨论区 】
发信人: GoooG (pumpkin), 信区: Biology
标 题: sensitivity and specificity
发信站: BBS 未名空间站 (Thu May 10 16:16:05 2012, 美东)
which measure can combine sensitivity and specificity?
thanks.
only one fp, tp, fn, tn.
a*******g
发帖数: 80
40
来自主题: Statistics版 - sensitivity and specificity
最近课题
1要评估诊断方法,我计算了sensitivity 和 specificity,有没有什么staistics 可
以综合评估这个诊断方法 比如把这两个%加起来 感觉有点扯啊
2 我们想比较这个诊断方法在不同病人身上的表现 我打算计算每个小组的
sensitivity 和 specificity 然后分别有chisq检验 可以吧 因为各小组病人不重叠(
比如 男病人和女病人) 满足indenpendent原则 但是如果病人在不同小组有重叠该怎么
检验呢 比如胖的病人和男的病人 其中必然有些男胖病人 该怎么办
2如果比较不同的诊断方法 1和2 病人都是同一群 该用什么检验方法 mcnemar 比较
paired data 但和这个没关呀
听听大拿们的建议
多谢!
m**********e
发帖数: 12525
41
比如离子火箭,推力只有几克,但是比冲可以做得无限大,因此可以把卫星送入很高的轨道
土星5主发虽然推力牛屄,但是比冲不够
航天飞机主发氢氧发动机是人类历史上specific impulse最大的火箭主发,技术上目前
无人能超越,鹅毛卖给高丽棒子的主发也不行,土鳖的那种氮氧化合物做燃料的火箭,差
了几百条大街
s********n
发帖数: 944
42
请教:自己换Oxygen Sensor容易吗?Specific还是Universal的好?
汽车零件销售部的人说都可以,没有啥差别。
另外,DEALER或汽车行换Oxygen Sensor得多少钱?
谢谢!
m******k
发帖数: 447
43
合作者希望加进去,但实在是没空间了。按说是不必加到Specific Aims那一页的吧。
诸位搞过R15是把那些教学培训描述放哪里呢?
t********8
发帖数: 24
44
二手交易风险自负!请自行验证是否合法和一手卡!:
我想卖的物品:
ThinkPad X200 (P8400, 4G, 160G, 12'', 6 Cell)
单张面值:
$712
可接受价格(必须明码标价!):
$670
物品新旧要求:
Brand New in BOX, Factory Sealed.
邮寄方式要求:
Your Label
买卖双方谁承担邮寄损失(Required if not code only):
before, me;after, you.
付款方式说明:
Non-CC Paypal or BoA
其他补充说明:
广告的有效期:
Until Gone!
物品来源(Required for All Cards!):
Lenovo Outlet
我的联系方式:
站内或h***********[email protected]
Warranty期限:
1 year.
能否证明是合法的一手卡?(Required for All Cards!):
state and zip:
NH 037xx
Below is the specification:
Processor Intel&r
i**********e
发帖数: 1145
45
See here, this question is discussed before.
http://www.mitbbs.com/article_t/JobHunting/31791913.html
It is possible to solve this in O(N) using hash table.
The discussion above refer to sum of 0, but it can be modified easily to sum
of a specific number.
Be careful that you might miss including the first element.
See my post here for more detail:
http://www.mitbbs.com/article/JobHunting/31798127_0.html
一些常见面试题的答案与总结 -
http://www.ihas1337code.com
T*****J
发帖数: 193
46
我有HTML格式的, 现在想找PDF版本的, 方便打印, 请站内留言, 谢谢
More Effective C#: 50 Specific Ways to Improve Your C#
M*k
发帖数: 56
47
I got an on-site opportunity at MS Mountain view. But a month passed since
I know this opportunity, they still has not told me which specific area or
group I am going to be interviewed with. Is this normal? How could I find
out.
I am going to MS soon, in February, any feedback will be appreciated.
Thanks!
s****e
发帖数: 1180
48
hiring manager让我specific 工资的requirement,我该怎么回答?工作地点在sylmar
,CA,我查了一下网上的资料我的职位在那是大约82,000一年,那我说个不低于65,000
的年薪我都能接受,这样好不好呢?但是看过一个网上的资料,说hm问工资这回事说高
说低都不好,都会fail掉那个问题,最好做以下回答:
I am sure that I am the candidate you are looking for. If you feel the same,
then I'm sure your offer will be fair and commensurate with the value I can
bring the company.
这样才行,大家说呢?
a********n
发帖数: 1287
49
感觉如果写的specific,可能很多和phd的时候不相关的工作就不能投了。
请教大家。
a*********e
发帖数: 8
50
给父母填DS160表,还没买机票,Have you made specific travel plans? 这个问题怎
么回答呢?
非常感谢!
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