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【判断题】
金属导体的电阻与导体的长度成正比，与横截面积成反比。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】The best way to keep yourself from getting colds is___________
A.
to keep yourself clean
B.
to use a disinfectant soap
C.
to take two aspirin pills every day
D.
to drink lots of water
【单选题】—May I have another chocolate? —Yes, of course.___________. A. Take it yourself B. Eat it, please C. Help yourself D. Have it yourself
A.
Take it yourself
B.
Eat it, please
C.
Help yourself
D.
Have it yourself
【单选题】According to the text, the intake of fish in 1986 was related to the risk of subsequent coronary disease.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】A．new B．another C．certain D．subsequent
【单选题】Make yourself _____ home and help yourself _____ anything that you'd like to eat. [ ]
A.
in; with
B.
at; to
C.
at; with
D.
in; to
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