()的作用是保证柴油在低压油路内循环,克服管路及滤清器的阻力,保证连续不断地供应足够数量及一定压力的柴油给喷油泵。
A.油箱
B.滤清器
C.输油泵
D.PT泵
参考答案:C
Awarded ______ 2012 Nobel Prize in Literature, Mo Yan, ______ productive contemporary Chinese writer,has published dozens of short stories related to the countryside.
A.a; a
B.the; a
C.不填; a
D.a; the
虱传回归热的主要传播媒介是()
A.鼠类
B.阴虱
C.臭虫
D.蜱
E.头虱