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【单选题】
观察下图，下列有关说法正确的是（）A.
A为感受器，C为神经中枢
B.
当②受刺激时，该处的细胞膜内外的电位表现为外正内负
C.
③处受刺激，①处能检测到兴奋，②处不能检测到兴奋
D.
A、B、C、D、E共同构成了一个完整的神经元
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举一反三
【单选题】If you _______ that late movie last night, you wouldn't he sleepy.
A.
haven't watched
B.
didn't watched
C.
hadn't watched
D.
wouldn't have watched
【单选题】If you ______that late movie last night, you wouldn't be sleepy now.
A.
hadn't watched
B.
didn't watch
C.
haven't watched
D.
wouldn't have watched
【单选题】If you ______ that late movie last night, you wouldn't be so sleepy.
A.
hadn't watched
B.
haven't watched
C.
wouldn't have watched
D.
didn't watch
【单选题】If you ________that late movie last night, you_______ so sleepy now.
A.
hadn’t watched, wouldn’t have been
B.
didn’t watch , wouldn’t be
C.
didn’t watch, wouldn’t have been
D.
hadn’t watched, wouldn’t be
【单选题】If you ______ that late movie last night, you wouldn't be dozy now.
A.
haven't watched
B.
didn't watch
C.
hadn't watched
D.
wouldn't have watched
【单选题】If you ______ that late movie last night, you wouldn't be sleepy.
A.
haven't watched
B.
hadn't watched
C.
didn't watch
D.
couldn't watch
【单选题】Linda didn't go to the movie last night because she ______ for the final examination until 10 p.m.
A.
should have prepared
B.
had to prepare
C.
must have prepared
D.
would have to prepare
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