题目内容

The pipes connected to the fuel tank are : the fuel supply line, the return line, the _____ line and other lines.

A. vapor
B. oil
C. water
D. fuel

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The fuel supply line is used to carry fuel from the ___ to the filter and then to the fuel pump.

A. tank
B. pan
C. case
D. chamber

功角是空载电动势与发电机端电压这两个时间物理量之间的夹角

A. 对
B. 错

功角是转子励磁磁动势与气隙合成磁动势这两个空间相量之间的夹角

A. 对
B. 错

功角是转子主磁极与气隙合成磁场等效磁极之间的夹角

A. 对
B. 错

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