题目内容
(请给出正确答案)
[单选题]
Under no circumstances()agree to such a proposal.
A.I would
B.would I
C.to which
D.for which
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A.I would
B.would I
C.to which
D.for which
Experiments have to be made under carefully _____ conditions .
A.treated
B.supplied
C.related
D.controlled
A.Put you foot under the desk
B.Put your foot under the chair
C.Put your arm under the chair