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【单选题】
冷却液温度传感器常采用哪种系数的温度传感器?A.
正温度系数
B.
负温度系数
C.
两种差不多
D.
不一定
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反馈参考答案：
举一反三
【简答题】简述加氢反应的影响因素(10分)
【简答题】The City Swimming Pool is open every day from eight in the morning until seven in the evening. It costs two dollars sixty to enter the pool. There is a special cheap price for students with a student ...
【单选题】The lady is too old to ____ a fall like that.
A.
come about
B.
come to
C.
come through
D.
come over
【单选题】Since Mr. Smith to London, he can tell us something about the city.
A.
has gone
B.
went
C.
will go
D.
has been
【单选题】He even________ to call the deal off if we didn't satisfy his demands. [ ]
A.
scolded
B.
threatened
C.
warned
D.
declared
【单选题】The environment of this city will be more seriously polluted unless ______ measures are taken to prevent factories from sending out poisonous gases and waste water.
A.
efficient
B.
useful
C.
helpful
D.
effective
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