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【单选题】
下列关于条件反射的叙述,不正确的是A.
形成的基本条件是强化
B.
后天形成
C.
可以发生消退
D.
数量有限
E.
使机体具有更大的适应性
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: How was the job interview? I think you make a good journalist. I remember you as the best writer of the class. M: Well, in fact, my application was turned down. They were looking for people wi...
A.
He doesn' t write well enough.
B.
He hash' t got any professional experience.
C.
He is not a professional writer.
D.
He didn't perform. well in the interview.
【简答题】按优先级由高到低的顺序写出常用的运算符为 。