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【判断题】
焦虑下降也会形成强化。( )A.
正确
B.
错误
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举一反三
【单选题】听力原文： Billy grabbed his fishing rod from the closet and headed for the back door. As he went out the door, he called to his grandmother that he would be back soon. When he reached the river, he put ba...
A.
His parents.
B.
His friends.
C.
His grandparents.
D.
His aunt and uncle.
【简答题】从物理上来讲 通信系统不使用传输介质的是()
【简答题】He grabbed his suitcase and gave the impression he was boarding the Tokyo plane. (what, why, who, that）A. that
【单选题】He grabbed its skinny trunk of a small tree with both hands, yanked it over sideways, and cracked it in half on his knee. Why do you think he did that?
A.
He did that to show his anger.
B.
He was an idle man.
C.
He was a drug dealer.
【简答题】三相异步电动机被广泛用来驱动各种 机床、 机、中小型 机、水泵及 机械等。
【多选题】He grabbed his suitcase and gave the impression ________ he was boarding the Tokyo plane.
A.
that
B.
/
C.
which
D.
what
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