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【简答题】
社会调查的作用主要体现在三个方面: 、 解释原因、预测趋势 。
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参考答案:
举一反三
【单选题】I go to work bus every day. [     ]
A.
by
B.
sit
C.
in
【单选题】—How do you go to school every day? —I ____ , but I ____ by bike a year ago.
A.
go to school by foot; went
B.
would go to school on foot; liked to go
C.
walk; used to go
D.
will walk to go school; was used to going
【判断题】牙齿按照存在时间暂久可以分为乳牙和恒牙两类
A.
正确
B.
错误
【单选题】下面几种逻辑门中,可以用作双向开关的是。
A.
CMOS 传输门
B.
或非门
C.
异或门
【单选题】_______ bad weather _______ me, I will go for a walk every day. I think health is the most important.
A.
If; stops
B.
Because; will stop
C.
Unless; stops
D.
As; will stop
【单选题】下面几种逻辑门中,可以用作双向开关的是【】。
A.
CMOS传输门
B.
或非门
C.
异或门
D.
TTL与非门
【单选题】I go to school by subway every day.
A.
channel
B.
tunnel
C.
train
D.
underground
【单选题】下面几种逻辑门中,可以用作双向开关的是( )。
A.
或非门
B.
异或门
C.
CMOS传输门
D.
与非门
【单选题】— How do you go to the office every day? — I often go to the office _____ subway. Sometimes I _____ a taxi. [     ]
A.
by; take
B.
by; by
C.
take; by
D.
take; take
【单选题】下面几种逻辑门中,可以用作双向开关的是( )。
A.
或非门
B.
异或门
C.
CMOS 传输门
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