b***u
发帖数: 52 | 1 In a data step merge, the BY variables in all data sets must have the same:
A. name
B. name and type
C. name and length
D. name ,type, and length
答案是B or D?? | l******n
发帖数: 9344 | 2 B
【在 b***u 的大作中提到】
: In a data step merge, the BY variables in all data sets must have the same:
: A. name
: B. name and type
: C. name and length
: D. name ,type, and length
: 答案是B or D??
| b***u
发帖数: 52 | | x********5
发帖数: 137 | 4 B. You can find the answer from online tutor. |
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