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【单选题】
给局域网分类的方法很多,下列__________是按拓扑结构分类的。A.
以太网和FDDI网
B.
有线网和无线网
C.
高速网和低速网
D.
星型网和总线网
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举一反三
【单选题】—Hurry up, Mum. The lights are turned on. Dad has been back. —It _________ be him. He has gone to Shanghai.
A.
must
B.
can’t
C.
mustn’t
D.
may
【简答题】在空白处填入适当的内容 ( 1 个单词 ) 或括号内单词的正确形式 1 . You may depend on ________ that they will look after your daughter when you are away. 2 . ____________(protect) yourself, you mustn't put any convenience before y...
【简答题】“5A” 智能建筑是指大厦具有 ____( BA ) 、 通信自动化( CA ) 、 办公自动化 ( OA )、____(FA)、____( BA ) 的特性。(3.1)
【单选题】Three-year-old Jack has been up half the night, screaming with pain. Now, he is in the doctor's surgery, where his GP reports that Jack's eardrum is red and inflamed. The little boy's mum is pleased b...
A.
Jack's trouble is serious
B.
the family doctor has been called in
C.
people depend too much on antibiotics for small infection
D.
most people prefer antibiotics to any other medicine
【简答题】根据样本资料已估计得出人均消费支出 Y 对人均收入 X 的回归模型为 ,这表明人均收入每增加1%,人均消费支出将( )。
【单选题】根据样本资料已估计得出人均消费支出Y对人均收入X的回归模型为 ,这表明人均收入每增加1%,人均消费支出将增加
A.
2％
B.
0.2％
C.
0.75％
D.
7.5％
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