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【多选题】
从功能角度看,局域网的特点包括( )。A.
用户个数较少
B.
网络传输速率高
C.
误码率高
D.
使用费用低
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举一反三
【简答题】儿童缺乏维生素D可出现______；孕妇、乳母和老人缺乏维生素D可出现______；老年人缺乏维生素D可出现______。
【简答题】The town's main _______ are its beautiful mosque and ancientmarketplace. A) features B) standpoint C) lifestyle D) venues
【简答题】儿童缺乏维生素D,会发生( ),成人缺乏维生素D,会发生( )
【简答题】儿童缺乏维生素 D 会导致 ;成人缺乏维生素 D 会导致 ;老人缺乏维生素 D 会导致
【简答题】如图所示电路，元件A的伏安特性为U=I 2 +1(I＞0)，求电流I和I 1 。
【简答题】The Town of Pressure and the Town of Pleasure were neighbors but had nothing in common. Residents built walls to influence from the other town. In Pressure, struggled to be the very best. When women g...
【单选题】What doesn't the man like about the university town?
A.
Its size.
B.
Its newspaper.
C.
Its radio station.
D.
Its weather.
【单选题】Before the telephone was ______ , man had no way of talking to each other except face to face.
A.
invented
B.
discovered
C.
installed
D.
created
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