题目内容

？？The same detection system mentioned in the previous paragraph？？

A. The same detection system mentioned in the previous paragraph
B. A breathalyzer attached to a car's seat belt
C. A smart car seat belt
D. An intelligent engine

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A．He is studying French in Canada.B．He is having a vacation in Canada.C．

A. He is studying French in Canada.
B. He is having a vacation in Canada.
C. He has been back in Canada for weeks.
D. He is planning to return to Canada in a year.

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三相绕线转子异步电动机在转子回路中串电阻可增大起动转矩，所串电阻越大，起动转矩就越大。( )

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62

A. desired
B. side
C. little
D. immediate

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异步电动机直接起动适用于情况，降压起动适用于情况。

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？？The same detection system mentioned in the previous paragraph？？

A. The same detection system mentioned in the previous paragraph B. A breathalyzer attached to a car's seat belt C. A smart car seat belt D. An intelligent engine

A．He is studying French in Canada.B．He is having a vacation in Canada.C．

三相绕线转子异步电动机在转子回路中串电阻可增大起动转矩，所串电阻越大，起动转矩就越大。( )

62

异步电动机直接起动适用于______情况，降压起动适用于______情况。

A. The same detection system mentioned in the previous paragraph
B. A breathalyzer attached to a car's seat belt
C. A smart car seat belt
D. An intelligent engine

异步电动机直接起动适用于情况，降压起动适用于情况。