过2天就考试了，有几道题目不知道应该选哪个答案，真诚请教谢谢了
Q30
You're attempting to read a raw data file and you see
the following messages displayed in the SAS Log:
NOTE: Invalid data for Salary in line 4 15-23.
RULE: ----+----1----+----2----+----3----+----4----+----5--
4 120104 F 46#30 11MAY1954 33
Employee_Id=120104 employee_gender=F Salary=. birth_date=-2061 _ERROR_=1 _N
_=4
NOTE: 20 records were read from the infile 'c:\employees.dat'.
The minimum record length was 33.
The maximum r
