题目内容

根据我国GB2261-71《汽车拖拉机用电设备技术条件》的规定,汽车电系规定为( ).

A. 正极搭铁
B. 负极搭铁
C. 上述说法都对

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电源到用电设备就只需用( )根导线连接,称为单线制。

A. 3
B. 2
C. 1
D. 4

汽车上所有用电设备都是( )的。

A. 并联
B. 混联
C. 串联

The tragic reality is that the passion often dies along with the failure of the business.

A. Yes
B. No
C. Not Given

If you want to start your own business, you should take advertising into consideration.

A. Yes
B. No
C. Not Given

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