It is reported that the number of graduate students who mental problems on the rise.A. hav

发布时间：2020-08-16 10:42:28


It is reported that the number of graduate students who     mental problems     on the rise.
A. have ; is
B. has; are
C. has; is
D. have; are

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(答案→)A. have ; is
B. has; are
C. has; is
D. have; are
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