试题与答案

在FDM中,主要通过 (37) 技术,使各路信号的带宽 (38) 。使用FDM的所有

题型:单项选择题

题目:

在FDM中,主要通过 (37) 技术,使各路信号的带宽 (38) 。使用FDM的所有用户 (39) 。从性质上说,FDM比较适合于传输 (40) ,FDM的典型应用是 (41)

A.不重叠,无隔离带

B.重叠,无隔离带

C.不重叠,有隔离带

D.重叠,有隔离带

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错

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题型:完形填空

根据对话内容,从对话后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

Jack:     It’s good to see you again. You are an engineer, aren’t you? 小题1:

Michael:  No,I worked in Canada for two years. It’s a good place.

Jack:     That sounds interesting,but I’m sure you are glad to be back. 小题2: .

Michael:  I’ve been seeing old friends,visiting my family, buying things for my new flat and just having a holiday. 小题3: .

Jack:     Haven’t you got another job?

Michael:  Yes 小题4:  But what about you?

Jack:     I’ve got a job in a company that sells office equipment-paper,typewriters---you know the sort of thing. 小题5: but I’m a salesman and I’ve been traveling all over Europe for the last two years, I’m still traveling and still selling I like working abroad.

A.It may sound rather dull.

B.I enjoyed myself there very much

C.How do you like your job?

D.What have you been doing since you came back?E、Did you stay in England after you left the university?

F、I started working here a week ago.

G、I have been really busy these days.

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