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【单选题】
下列关于突触的叙述中,正确的是A.
电突触传导速度常常很快，几乎无突触延迟，具有单向传导的特性
B.
化学突触基本结构由突触前膜、突触后膜和突触间隙组成
C.
突触小泡会向突触后膜运动，直至融合，将神经递质释放
D.
乙酰胆碱是兴奋性；5而-羟色胺一般是抑制性，鲜有兴奋性的
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【简答题】阅读理解。 It is true that good writers rewrite and rewrite and then rewrite some more. But in order to work up the desire to rewrite, it is important to learn to like what you write at the early stage. I ...
【简答题】It is true that good writers rewrite and rewrite and then rewrite some more. But in order to work up the desire to rewrite, it is important to learn to like what you write at the early stage. I am sur...
【简答题】简述劳动者的基本义务。
【单选题】听力原文： It is true that good writers rewrite and rewrite and then rewrite some more. But in order to work up the desire to rewrite, it is important to learn to like what you write at the early stage. I ...
A.
People think in words and sentences.
B.
Human ideas are translated into symbols.
C.
People think by connecting threads of ideas.
D.
Human thoughts are expressed through pictures.
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