Given the following raw data records:
----|----10---|----20
 Susan*12/29/1970*10
 Michael**6
The following output is desired:
| Obs | employee | bdate | years | 
| 1 | Susan | 4015 | 10 | 
| 2 | Michael | . | 6 | 
Which SAS program correctly reads in the raw data?
A.
data employees;
 infile ‘file specification’ dlm=’*’;
 input employee $ bdate : mmddyy10. years;
 run;
B.
data employees;
 infile ‘file specification’ dsd=’*’;
 input employee $ bdate mmddyy10. years;
 run;
C.
data employees;
 infile ‘file specification’ dlm dsd;
 input employee $ bdate mmddyy10. years;
 run;
D.
data employees;
 infile ‘file specification’ dlm=’*’ dsd;
 input employee $ bdate : mmddyy10. years;
 run;
Answer: D
					注解:考点是DLM和DSD连用,具体参考SAS Base (2)。