题目内容

常用的无线局域网标准主要包括——。

A. IEEE 802．11
B. 蓝牙
C. HipLAN
D. 以上全部

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甲、乙二人订立买卖合同，甲将自己的电视机卖给乙；后甲又同丙就同一台电视机订立买卖合同。此时，乙因先订合同而有债权，丙则因后订合同，不应有债权。()

A. 正确
B. 错误

以下哪项不是以太网端口VLAN成员模式？—— ‘

A. access
B. multi
C. trunk
D. manage

如果一个接人交换机有24个10／100Mbps端口，那么上联带宽可以控制在——。

A. 50Mbps
B. lOOMbps
C. 120Mbps
D. 200Mbps

听力原文：W: Did you see the car that girl just drove past on？
M: That wasn't a bad-looking car. I wouldn't mind having one like it.
Q: What does the man say about the car？
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A. He used to have one like that.
B. He didn't think it looked good.
C. He would like to have one.
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