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【判断题】
概念模型的特点是具有数据结构、数据操作和数据约束。( )A.
正确
B.
错误
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举一反三
【单选题】—Tom looks very sad. What’s wrong _______ him? —An accident happened _______ his father this morning.
A.
to; with
B.
with; to
C.
for; to
D.
with; for
【简答题】I will give you his l______________(座机)number.
【简答题】Hi, Amy, it's Talia. I finally talked to Nick and I (1) ______ to him about messing up the tape. I guess I was (2) ______ how strong his reaction would be. He didn't get angry at all!I guess I need to...
【简答题】某放大电路的电压放大倍数为1000倍,相当于____ dB;电压放大倍数为100倍,相当于____ dB。
【简答题】One day, little Roy was ill. So his mother took him to the clinic( 诊所 ). A doctor examined him and said : “ Well, boy, there is something wrong with you. I am afraid you need to get injections ( 输液 ) ...
【单选题】Tom got nothing in______ for her kindness,_____ made him very sad.
A.
award; as
B.
reward; which
C.
prize; which
D.
medals; as
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