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The SAS data set Employee_info is listed below.
e mp l oye e bonus
2542 100.00
3612 133.15
2198 234.34
2198 111.12
The following SAS program is submitted:
proc sort data=employee_info;
<insert BY statement here>
run;
Which one of the following BY statements completes the program and sorts the data in
sequential order by descending bonus values within ascending employee values?
a. by descending bonus employee;
b. by employee bonus descending;
c. by employee descending bonus;
d. by descending employee bonus;
Correct answer:  c


AC有什么区别呢？A也是employee默认的升序啊
[size=13.3333330154419px]谢谢大家！

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关键词：ending DESC DING CEN End statements following employee values within

当然有区别了，题目要求先按employee values升序排列，在对bonus降序排列。A变量顺序反了。