【单选题】【消耗次数：1】
100Mbps网卡的数据传输速度为（ ）。
①
1.25MB/s
②
12.5MB/s
③
100MB/s
④
125MB/s
参考答案：
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10 Mb/s和100 Mb/s自适应系统是指（ ）。
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既工作在 10 Mb/s，同时也工作在100 Mb/s
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无线局域网的技术标准，( )的数据传输速率可达300Mb/s以上，理论传输速率最高可达600Mb/s。
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IEEE802.11n标准
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IEEE802.11g标准
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IEEE802.11b标准
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PCI总线系统采用的总线时钟可以是33MHz和66MHz，当采用66MHz总线时钟工作于64位系统时，其数据传输速率为MB/s。
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【简答题】
10Mb/s以太网升级到100Mb/s、1Gb/S和10Gb/s时，都需要解决哪些技术问题？为什么以太网能够在发展的过程中淘汰掉自己的竞争对手，并使自己的应用范围从局域网一直扩展到城域网和广域网？
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有10个站连接到以太网上。试计算一下三种情况下每一个站所能得到的带宽。（1）10个站都连接到一个10Mb/s以太网集线器；（2）10个站都连接到一个100Mb/s以太网集线器；（3）10个站都连接到一个10Mb/s以太网交换机。
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【单选题】
The
book I ____ the other day can be found nowhere.
①
borrow
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borrowed
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are
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was
borrowing
【单选题】
Her parents objected to ____ that farmer, though he has a lot of money.?
①
her marrying ?
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marrying ?
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marry ?
④
her marrying with?
【单选题】
Tom, what did you do with my documents? I have never seen such a____ and disorder!
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mass
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mess
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guess
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bus
【单选题】
—Could I borrow your dictionary? —I’d get it for you ____I could remember who last borrowed it.
①
except that
②
unless
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only if
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if only
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No one thought that John’s suggestion was worth ____.?
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?to consider ?
②
considering ?
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to be considered ?
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of consideration?
【单选题】
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keep up with
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bring forward
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keep in mind
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come true
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20. Only when he had handed in his exam paper ____ he had made several mistakes.
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he has realized
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does he realize
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has he realized
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did he realize
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went out for
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went out with
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went out to
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went out of
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A sudden idea ____ to him that he might try the new method.
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occurred
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happened
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took place
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