w****2
发帖数: 12072 | 1 http://blog.sina.com.cn/s/blog_5a53af350100fed0.html
中国早期锻压设备概况
由于各种因素影响，我国早期在大型锻压设备领域长期处于落后地位。1931年日本
侵占东北以后，在沈阳、大连建立机械厂，安装了20MN、40MN自由锻水压机生产锻件。
1945年8月，苏联红军出兵东北围歼日军主力后，这些锻造设备被苏联拆走。日本战败
投降以后，1947年民国政府以战争赔偿名义，从日本拆回一批锻造设备，有10MN、12MN
、20MN自由锻水压机各1台、30MN自由锻水压2台，5吨蒸汽锤2台，以及3吨以下蒸汽锤
约5台。这些设备运回后一直存放在几个省市的仓库中锈蚀。
1949年新中国成立以后，迅速推进重工业和国防工业体系建设，而这些领域都急需
大型锻压设备。政府主管部门就着手部署日本赔偿锻造设备的使用单位，由沈阳重型机
器厂等单位进行修复，设计和建造厂房，砌筑加热炉、热处理炉和其他配套设施。
1953年沈阳重型机器厂首先将日本赔偿散存在鞍山的2000吨（20MN）自由锻水压机
修复并安装投产，这是我国第一家生产大型锻件的企业， |
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g*****t
发帖数: 162 | 4 第一题先考虑一位数，显然只有 1 3 满足条件
考虑更多的情况，假设该数为10m+n，n是一个个位数。则（10m+n）平方=100m平方+n平
方+20mn
拆开来考虑三项对结果的影响：
1）n平方可能对个位和十位产生影响；
2）20mn只对十位及更高位产生影响；
3）100m平方只对百位及更高位产生影响
1）显然n应该是奇数，否则个位就是偶数了
2）20mn在十位上必然得到偶数。为了所以n平方需要进位一个奇数才能使结果的十位上
是偶数。而对于1 3 5 7 9没有一个能进位一个奇数的。
结束
所以答案只有1 3 |
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g*****t
发帖数: 162 | 5 第一题先考虑一位数，显然只有 1 3 满足条件
考虑更多的情况，假设该数为10m+n，n是一个个位数。则（10m+n）平方=100m平方+n平
方+20mn
拆开来考虑三项对结果的影响：
1）n平方可能对个位和十位产生影响；
2）20mn只对十位及更高位产生影响；
3）100m平方只对百位及更高位产生影响
1）显然n应该是奇数，否则个位就是偶数了
2）20mn在十位上必然得到偶数。为了所以n平方需要进位一个奇数才能使结果的十位上
是偶数。而对于1 3 5 7 9没有一个能进位一个奇数的。
结束
所以答案只有1 3 |
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t***u
发帖数: 20182 | 6 Visitors (and accompanying spouses and / or children) whose visas have
expired may be boarded provided they
meet the following requirements:
F and J nonimmigrants:
• Readmission from contiguous territory or adjacent islands (except
Cuba)
• Readmission after an absence not exceeding 30 days
• In possession of Form I-94 endorsed to show an unexpired period of
initial admission or extension of
stay or in possession of the Certificate of Eligibility Student and Exchange
Visitor Inf... 阅读全帖 |
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w******s
发帖数: 1429 | 7 还有这个航班？有人飞过没？
train bus Mon 5-Jul-10
flight
Beijing (PEK)
Depart 11:55 pm
Terminal 3
to Dubai (DXB)
Arrive 4:15 am +1 day
Terminal 3
3,635 mi
(5,850 km)
Duration: 8hr 20mn
EK Emirates
Flight: 307
3Economy/Coach Class, Meal, 77W
flight train bus Tue 6-Jul-10
flight
Dubai (DXB)
Depart 8:30 am
Terminal 3
to New York (JFK)
Arrive 2:15 pm
Terminal 4
6,846 mi
(11,018 km)
Duration: 13hr 45mn
EK Emirates
Flight: 201
3Economy/Coach Class, Meal, 77W
Total d |
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t******w
发帖数: 77 | 8 又查了一下CBP的官网，关于 auto revalidation 对H1B身份的要求如下
All other nonimmigrants:
• Readmission from contiguous territory
• Readmission after an absence not exceeding 30 days
• In possession of Form I-94 endorsed to show an unexpired period of
initial admission or extension of
stay
• M-1student must also present a properly endorsed SEVIS Form I-20MN
• In possession of a valid passport, unless exempt
• Does not require authorization for admission under the INA 212(d)(3)
&#... 阅读全帖 |
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l**g
发帖数: 1914 | 9 成了都未必可以？那怎样才可以？
吧CBP 的规定打一分出来总可以了吧！！！
IMPORTANT UPDATE
AUTOMATIC REVALIDATION OF VISAS
The validity of an expired nonimmigrant visa may be considered to be
automatically extended to the date of
application for readmission at ports of entry. This includes cases where U.S
. Citizenship and Immigration
Services has changed the nonimmigrant classifications of an alien to another
nonimmigrant classification. The
validity of an expired or unexpired nonimmigrant visa may be considered to
be automatical... 阅读全帖 |
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m****6
发帖数: 119 | 11 I have downloaded them. Very useful on how to use various plugs.
ed2k://|file|Rapala%20-%20How%20To%20Fish%20-%20#%201%20-%20Lures%20Fishing.
avi|731691008|DDC154CEEC636C56C3DFF03A2F776B29|/
ed2k://|file|Rapala%20-%20How%20To%20Fish%20-%20#%202%20-%20Lures%20Fishing%
20-%20Leurres%20P%C3%AAche%20-%2090%20mn%20-%20AVI.avi|731686912|
8D70FA2184F89FEFCD03A58908DD92F0|/
Or you can search in emule using key word "rapala" |
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m****6
发帖数: 119 | 12 I have downloaded them. Very useful on how to use various plugs.
ed2k://|file|Rapala%20-%20How%20To%20Fish%20-%20#%201%20-%20Lures%20Fishing.
avi|731691008|DDC154CEEC636C56C3DFF03A2F776B29|/
ed2k://|file|Rapala%20-%20How%20To%20Fish%20-%20#%202%20-%20Lures%20Fishing%
20-%20Leurres%20P%C3%AAche%20-%2090%20mn%20-%20AVI.avi|731686912|
8D70FA2184F89FEFCD03A58908DD92F0|/
Or you can search in emule using key word "rapala" |
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t******w
发帖数: 77 | 13 又查了一下CBP的官网，关于 auto revalidation 对H1B身份的要求如下
All other nonimmigrants:
• Readmission from contiguous territory
• Readmission after an absence not exceeding 30 days
• In possession of Form I-94 endorsed to show an unexpired period of
initial admission or extension of
stay
• M-1student must also present a properly endorsed SEVIS Form I-20MN
• In possession of a valid passport, unless exempt
• Does not require authorization for admission under the INA 212(d)(3)
&#... 阅读全帖 |
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d**y
发帖数: 18174 | 14 F & J以外的非移民签证应该适用下面的规定：
All other nonimmigrants:
• Readmission from contiguous territory
• Readmission after an absence not exceeding 30 days
• In possession of Form I-94 endorsed to show an unexpired period of
initial admission or extension of
stay
• M-1student must also present a properly endorsed SEVIS Form I-20MN
• In possession of a valid passport, unless exempt
• Does not require authorization for admission under the INA 212(d)(3)
• Has not applied... 阅读全帖 |
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s*******s
发帖数: 1568 | 15 not 20mn in the offer letter? |
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j*******l
发帖数: 70 | 16 I think there is no such thing as "guarantee" 20mn. Compensation of this
level should always be performance-based. |
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