【单选题】【消耗次数：1】
发动机的机械摩擦损失不包括（）。
①
活塞组件的摩擦
②
附件摩擦
③
气门机构摩擦
④
轴承摩擦
参考答案：
复制
纠错
相关题目
【单选题】
谢友柏，我国机械学设计及理论、摩擦学专家，提出了摩擦学的三个公理和摩擦学（大）系统工程的基本思想和理论框架，于2009年获得中国摩擦学学会（ ）奖。
①
伯乐奖
②
成就奖
③
研究奖
④
最高成就奖
【单选题】
谢友柏，我国机械学设计及理论、摩擦学专家，提出了摩擦学的三个公理和摩擦学（大）系统工程的基本思想和理论框架，于2009年获得中国摩擦学学会（ ）奖
①
伯乐奖
②
成就奖
③
研究奖
④
最高成就奖
随机题目
【单选题】
某生产车间采用五五摊销法进行低值易耗品摊销的核算。该生产车间4月份领用低值易耗品的实际成本为10000元；报废低值易耗品的实际成本为4000元，残料计价100元。4月份应计入制造费用的低值易耗品摊销价值为（ ）。
①
1900元
②
6900元
③
4900元
④
5900元
【单选题】
The only pleasure that Einstein ____ his great fame was the ability it gave him to help others.
①
resulted from
②
stirred up
③
turned out
④
derived from
【单选题】
It was ____ of you not to play the piano while I was having a sleep.
①
considerate
②
careful
③
considering
④
considerable
【单选题】
The rain was heavy and ____ the land was flooded.
①
consequently
②
continuously
③
constantly
④
consistently
【单选题】
The coming of the railways in the 1830s ____ our society and economy.
①
transferred
②
transformed
③
transmitted
④
transported
【单选题】
When you go to the doctor he asks you to describe your ____ so that he can make a diagnosis (诊断).
①
indications
②
signs
③
symbols
④
symptoms
【单选题】
Wouldn’t it be wise to _____ the possibility of rain before planning the garden party?
①
check in
②
check through
③
check out
④
check on
【单选题】
This is the first draft of the book. Please feel perfectly free to ____ on it.
①
cope
②
complain
③
comment
④
VVV