在汽车修理中,活塞、活塞环及活塞肖的选配,应选择与气缸()尺寸或()尺寸级别相同的活塞、活塞环及活塞销。
参考答案:标准;修理
将2mlNO、38mlNO2、8mlO2的混合气倒立于盛有水的水槽中,充分反应后关于剩余气体的成分和体积的判断中正确的是
A.剩余4mlNO
B.剩余12mlNO2
C.剩余1mlO2
D.不能准确判断
Which of the following would be a determinant as to what people find stressful
A.Personality.
B.Education.
C.Marital status.
D.Shoe size.