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  3. How to evaluate the performance of students is still a problem that troubles many professors.

How to evaluate the performance of students is still a problem that troubles many professors.

admin2014-03-02  65
问题 How to evaluate the performance of students is still a problem that troubles many professors.
选项 A、examine and judge
B、assist in
C、enhance
D、account for
答案A
解析 examine and judge评估，检测；assist in帮助；enhance加强；account for说明，解决。
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