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【简答题】
设P:我生病,Q:我去学校,则下列命题符号化的结果分别是: (1) 只有在生病时,我才不去学校 () (2) 若我生病,则我不去学校() (3) 当且仅当我生病时,我才不去学校() (4) 若我不生病,则我一定去学校()
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举一反三
【单选题】During the examination we are required to stay in our seats, keep our eyes on our work, ____ to anyone.
A.
instead of speaking
B.
rather than speak
C.
and not to speak
D.
but would not speak
【单选题】．During the test we were supposed to stay in our seats , keep our eyes on our work , ___________to anyone .
A.
but could not talk
B.
instead of speaking
C.
rather than speak
D.
and not speak
【单选题】Our keys to the gate were ____ to our neighbours during our absence. [ ]
A.
given out
B.
given away
C.
given over
D.
given up
【单选题】During the examinations we are supposed to remain in our seats, fix our eyes on the papers, _____to anyone.
A.
instead of speaking
B.
and not to speak
C.
rather than speak
D.
but shouldn’t speak
【简答题】科学发展观提出的根本依据是
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