The word "spray" (underlined in the third paragraph) means
A. oil mist
B. hot gas
C. injection
D. fuel oil
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In a modern three-phase A.C. synchronous brushes generator, the excitation winding is on the rotor. That means .
A. The generator need not excitation.
B. The winding on the rotor is for inputting excitation current.
C. There are three phase windings on the rotor.
D. The generator has no brushes.
Cooling water is circulated through______in some injectors.
A. the nozzle
B. the nozzle tip
C. the internal passages
D. the fuel re-circulated
M2等于________。
A. M1，是银行外现金的另外一种称呼
B. M1加上储蓄存款、小额定期存款以及货币市场资金
C. M1减去旅行支票，因为其不是实际货币
D. 现金加上储蓄存款、所有定期存款、货币市场资金以及其他存款
E. M1加上储蓄存款、小额定期存款减去货币市场资金
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