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【单选题】
兴奋性突触传递叙述，哪项是错误的A.
突触前膜发生去极化
B.
Ｃa２＋由膜外进入突触前膜内
C.
突触小泡释放，并与后膜受体结合
D.
突触后膜对Ｋ＋通透性增高
E.
后膜去极化达到阈电位值时引起突触后神经元发放冲动。
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【单选题】I wish Bill would drive us to the train station but he has______to take us all.
A.
too small a car
B.
very small a car
C.
a too small car
D.
such a small car
【单选题】—I wish Bill would drive us to the train station. —He has ______ to take us all.
A.
too small a car
B.
very small a car
C.
a too small car
D.
such small a car
【单选题】I wish Bill would _______ stating a new business.
A.
get to
B.
get about
C.
get around to
D.
get around
【简答题】常绿乔木 树皮纵裂 单叶互生,离基三出脉 浆果黑色
【单选题】I wish Bill would___starting a new business.
A.
get to
B.
get about
C.
get around to
D.
get around
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