由于活塞杆有一定体积,当活塞上下运动时,上腔和下腔体积变化不相等,为此,油压减振器通过下面那个部件来进行油量的调节()
A. 芯阀
B. 油缸
C. 进油阀
D. 活塞
CRH2型动车组拖车制动系统的基础制动方式采用的是()
A. 轮盘制动
B. 轴盘制动
C. 轮盘制动+轴盘制动
D. 踏面制动
Thomas Edison is often cited as an example of a great inventor who would never yield to hardships in his quest for new inventions and deserve his _____ success()
A. resultant
B. resulting
C. resulted
D. result