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【多选题】
下列属于典型调查特点的是()。A.
从调查对象的全部单位中选择少数重点单位调查
B.
从调查对象的全部单位中选择少数典型单位调查
C.
目的是为了推断总体的某些特征
D.
可以用来描述和揭示事物的本质特征和规律
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【单选题】I was sure that I was to be killed. I became terribly nervous. I fumbled in my pockets to sec if there were any cigarettes, which had escaped their search. I found one and because of my shaking hands,...
A.
shake
B.
search
C.
hide
D.
find
【单选题】What is the special feature of Effnet's firewall system?
A.
All the devices and parts are put in the basement.
B.
All the devices and parts are put into a single box.
C.
Cellular phone and Internet are part of this system.
【单选题】In fact， all of these devices are designed by him in his spare time.
A.
finally
B.
really
C.
actually
D.
usually
【单选题】Which of the following devices replicates and passes data to all devices connected to it?（）
A.
Switch
B.
Router
C.
Bridge
D.
Hub
【单选题】___good care, the electrical devices in the area all work well.
A.
Regarding
B.
Thanks to
C.
Like
D.
Thanks for
【单选题】What devices have been installed in Beijing airport?
A.
Test paper is used to pick up particle on the surface of the luggage.
B.
Explosive-detection devices have been installed at the entrances in Beijing Airport.
C.
Passengers are urged to arrive at airports much earlier than before.
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