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【单选题】
不属于局域网的特点有()A.
较小的地域范围
B.
高传输速率和低误码率
C.
一般为一个单位所建
D.
一般侧重共享位置准确无误及传输的安全
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【简答题】You seem to have taken a dislike to him
【简答题】Now that final exams are history, you seem to have that extra bounce. After all, winter 1 awaits you. Get off that couch and begin the more productive life you should be living 2 our help. Spring F...
【单选题】关于因果稳定离散时间LTI系统，以下说法错误的是 。
A.
其单位脉冲响应的双边Z变换与单边Z变换的结果相同
B.
其系统函数的收敛域可能是有限Z平面 内的环状区域
C.
系统函数的收敛域包含单位圆
D.
单位脉冲响应是绝对可和的
【单选题】A: You seem to have a lot of work to do in your office. You've always been working overtime. B: ______
A.
You are right, but don't you know the meaning of work?
B.
Sorry, I don't think so. I get overpaid overwork, you know.
C.
That's right. All work and no play makes Jack a dull boy.
D.
That's right, but the work is interesting. I don't mind some extra hours at all
【简答题】They have offices in the ______ (commerce) heart of the city.
【单选题】They have offices in the ___________ heart of the city.
A.
commerce
B.
commercialize
C.
commercial
D.
commercially
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