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问题 多项选择题

燃油在内燃机中能量消耗的分布为（）。

A.用于实际做功的燃油能量占38%。

B.冷却占29%。

C.排气及其它消耗占33%。

D.润滑占33%

答案

参考答案：A, B, C

选择题

英国作家雪莱曾以一部《解放了普罗米修斯》享誉文坛。这部巨著反映了 [ ]

A．时人对启蒙运动宣扬的理性王国的失望

B．现实主义取代浪漫主义，成为文学主流

C．作者较多使用现代主义手法进行文学创作

D．作者强调集中表现自我

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单项选择题

Discretionary fiscal policy can be defined as:（）

A. a situation in which total government spending exceeds total government revenue during a specific time period, usually one year. 

B. a change in laws or appropriation levels that alters government revenues and/or expenditures. 

C. a situation in which total government spending is less than total government revenue during a time period, usually one year.
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