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【判断题】
经济模型必须完全反映现实,否则没有价值。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】下列哪个空调系统属于半集中式空调系统( )。.
A.
一次回风系统
B.
风机盘管加新风机组
C.
制冷剂系统
D.
二次回风系统
【单选题】—How many computers are there in your computer room? —__________. [     ]
A.
 Yes, I do.
B.
 No, it isn't.
C.
 Twenty-five.
【单选题】Which of the following is NOT an advantage of a well-spaced set of twenty to twenty four teeth ?
A.
These teeth would work harder and become healthier.
B.
Decay of teeth could not develop.
C.
We would eat the diet of our ancestors.
D.
Teeth can be extracted easily during childhood.
【单选题】They ______each other for more than twenty years.
A.
don't see
B.
didn't see
C.
haven't seen
D.
hadn't seen
【单选题】新风机组加风机盘管属于()空调系统。
A.
集中式
B.
半集中式
C.
分散式
D.
以上都不是
【单选题】This book cost her twenty yuan , ?
A.
didn’t it
B.
doesn’t it
C.
did it
D.
does it
【单选题】对于同一资料,如果t r >t 0.05,v ,则有(    )
A.
t b >t 0.05,v
B.
t b =t 0.05,v
C.
t b <t 0.05,v
D.
t b >t 0.05,v 或t r <t 0.05,v
E.
以上答案均不对
【单选题】The fish are usually longer than twenty centimetres.
A.
Right
B.
Wrong
C.
Doesn't say
【单选题】木板年画出现于______。
A.
汉代
B.
宋代
C.
明代
D.
清代
【单选题】Her shoes _____ twenty dollars and his T-shirt _____ also twenty dollars. [     ]
A.
are;are
B.
are;is
C.
is; are
D.
be; is
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