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【单选题】
设array为一个数组,则表达式sizeof(array)/sizeof(array[0])的结果为(  )。
A.
array数组首地址
B.
array数组中元素个数
C.
array数组中每个元素所占的字节数
D.
array数组占的总字节数
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参考答案:
举一反三
【单选题】第5章: 一 半导体薄片置于如图所示的磁场中,薄片电流的方向向右,判断上下两侧的霍耳电势差:
A.
电子导电, V a b ;
B.
电子导电, V a >V b ;
C.
空穴导电, V a >V b ;
D.
空穴导电, V a =V b 。
【单选题】一半导体薄片置于如图所示的磁场中,薄片中电流的方向向右。试判断上下两侧的霍尔电势差:
A.
电子导电,Ua
B.
电子导电,Ua>Ub;
C.
空穴导电,Ua>Ub;
D.
空穴导电,Ua=Ub。
【单选题】Joe just wanted to play a joke on her. He did not mean ______ Sarah.
A.
hurting
B.
to hurt
C.
hurted
D.
hurts
【单选题】一 半导体薄片置于如图 1 所示的磁场中,薄片电流的方向向右,判断上下两侧的霍耳电势差:
A.
电子导电, V a b
B.
电子导电, V a >V b
C.
空穴导电, V a >V b
D.
空穴导电, V a =V b
【单选题】Sarah has read lotsof stories by American writers . Now she would 1ike toread stories by writers from countries .
A.
. some ; any     
B.
. other ; some    
C.
. some ; other           
D.
. other ; other
【单选题】听力原文:Sarah has been knocking herself out to deliver the work on time, since she expected to live up to her boss who promises to give her a promotion if nothing goes amiss. (30)
A.
Sarah gets her head knocked on the door in a rush to deliver the work on time.
B.
Though Sarah tried her best on the job, she failed the expectation of her boss.
C.
Sarah worked very hard in the hope of getting promoted.
D.
Sarah's boss gave her an empty promise, even though Sarah has worn herself out on the job.
【单选题】一半导体薄片置于如图 所示的磁场中,薄片中电流的方向向右。试判断上下两侧的霍尔电势差:
A.
电子导电, V a b ;
B.
电子导电, V a >V b ;
C.
空穴导电, V a >V b ;
D.
空穴导电, V a =V b 。
【判断题】Sarah has learnt Christmas stories from her brother.()
A.
正确
B.
错误
【单选题】以下哪点不是食物中毒的特点()
A.
爆发流行
B.
人与人之间传染
C.
去除污染食品后无新病人出现
D.
症状基本一致
【单选题】一半导体薄片置于如图所示的磁场中,薄片中电流的方向向右。试判断上下两侧的霍尔电势差:
A.
电子 导 电,V a V b ;
B.
电子导电, V a V b
C.
空穴导电,V a >V b ;
D.
空穴导电,V a =V b
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