题目内容
(请给出正确答案)
[单选题]
The professor has given the students a list of articles ()the topic under discussion.
A.relevant to
B.related with
C.associated with
D.associated to
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A.relevant to
B.related with
C.associated with
D.associated to
A.I can
B.can I
C.would I
D.I would
试证
的充分必要条件是f(x)是g1(x),g2(x)...gi(r)的组合:gj(x)是f1(x),f2(x),..fk(x)的组合(Vi,j).