之前觉得base 70题里有2个题目答案有问题,今天100%通过base后,确定自己的答案应该是正确的,发上来供大家参考.

29.The following SAS program issumbitted:

data WORK.INFO;

     infile 'DATAFILE.TXT';

     input @1 Company $20. @25 State $2. @;

     if State=' ' then input @30 Year;

     else input @30 City Year;

     input NumEmployees;

run;

How many raw data records areread during each iteration of the DATA step?

     A. 1

     B. 2

     C. 3

     D. 4

原始答案A, 正确答案应该是B. 在if/else的input statement之后没有"@", 因此后面NumEmployees的input会从后面一行数据读取. 所以每次data循环会读取2行数据.

45.The following SAS program issubmitted:

ods csvall file='c:\test.cvs';

proc print data=WORK.ONE;

     var Name Score Grade;

     by IdNumber;

run;

ods csvall close;

What is produced as output?

     A. A file named test.cvs that can only beopened in Excel.

     B. A text file named test.cvs that can beopened in Excel or in any text editor.

     C. A text file named test.cvs that canonly be opened in a text editor.

     D. A file named test.cvs that can only beopened by SAS.

原始答案C, 个人觉得答案应该是B, 输出文件是一个逗号分割符的文本文件, 虽然文件名用的是cvs而不是csv, 但是不影响Excel的读取, 比如选择打开方式后就可以在Excel中打开. 所以应该选B.