题目内容
A working party(工作组) has been set up to ________ the problem.
| A.look through | B.look up | C.look into | D.look out |
:C
:短语辨析。A仔细检查;B查找;C调查;D当心;句意:一个工作组已经被成立来调查这个问题。根据句意说明C正确。
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