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【单选题】
听力原文:M: I am so relieved, I just finished the story I was working on for our creative writing course. W: I haven't quite finished mine yet. I had trouble getting past the beginning. M: How come? W: Well, I was really happy to be writing a detective story. But after the first few pages, I sort of froze up mentally. I just couldn't write any more. M: The same thing happened to me. I thought it meant I lack imagination. W: Well, Professor Wilson said it's pretty common for writers to get stuck like that. M: You went to talk to her about it? W: Actually, I went to ask for more time to finish the assignment. But instead she gave me some advice about bow to keep from getting stalled writing like that. She said that the first thing I should do is just write anything that comes into my head even if it doesn't make any sense, sort of warm up exercise. M: That is interesting. When I get stuck, I shift to something else, you know, do some work for one of my other courses. W: Well, her methods seem to have worked for me. I've written most of the story, and I should be able to hand in on time. But first I need to go to the jewelry store. M: You are going shopping? Can't you wait until you finish your story? W: I am going there for my story. My detective solves a jewelry store robbery, so I want to take a look at how the jewelry cases are arranged, where the security cameras are located, that sort of thing. (20)
A.
A detective story.
B.
Their writing assignment.
C.
Professor Wilson's writing course.
D.
A jewelry store robbery.
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参考答案:
举一反三
【单选题】Negative dB values represent ______.
A.
power gain
B.
power losses
C.
power values that do not change
D.
None of the above
【单选题】Negative dB values represent ( ).
A.
power gain
B.
power losses
C.
power values that do not change
【判断题】同频小区重选优于异频/异系统的小区重选,设置这三个参数时应使得同频小区重选启动门限小于 异频/异系统小区重选启动门限。
A.
正确
B.
错误
【单选题】以下哪种说法是正确的?
A.
Arrhenius定律只适用于放热反应
B.
Arrhenius定律只适用于吸热反应
C.
Arrhenius定律只适用于理想气体参与的反应
D.
Arrhenius定律只适用于不可逆反应
【多选题】以下说法正确的是:
A.
Arrhenius 定律只适用于放热反应
B.
Arrhenius 定律既适用于基元反应,也适用于总包反应中的每一步基元反应
C.
Arrhenius 定律只适用于不可逆反应
D.
Arrhenius 定律只适用于理想气体参与的反应
【单选题】综合布线系统中的设备间应有足够的安装空间,其面积不应小于:[2003年第119题]
A.
10m\r\n 2
B.
15m\r\n 2
C.
20m\r\n 2
D.
30m\r\n 2
【多选题】Which of the following is an advantage of using dB representations of gain values? ( )
A.
Positive and negative dB values represent gain and loss values that are reciprocals of each other.
B.
In multistage amplifiers, gain calculations are simplified by the use of dB values.
C.
Using db values, we can represent large gain values with relatively small numbers.
【单选题】已知两级放大电路Au1=20dB, Au2=40dB,则电路总的电压放大倍数Au为( )dB。
A.
80
B.
800
C.
60
D.
20
【单选题】以下哪个参数不用于异系统小区重选控制()。
A.
slntraSearch(小区重选的同频测量触发门限)
B.
sNonintraSearch异频/异系统小区重选测量启动门限
C.
ThreshXHigh异频/异系统高优先级重选门限
D.
ThreshXLow
【单选题】综合布线系统中,设备间应有足够的设备安装空间,其面积最低不应小于()m2。
A.
5
B.
10
C.
15
D.
20
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