柴油机燃料供给系开始供油的时间,一般有两种表示方法,即()
A.供油开始角和喷油提前角
B.供油开始角和供油提前角
C.供油提前角和喷油提前角
D.喷油提前角和点火提前角
参考答案:C
党的思想路线的核心是( )。
A.一切从实际出发 B.理论联系实际C.实事求是 D.在实践中检验真理和发展真理
— ________he managed to solve the problem?
— Oh, he turned to Professor Lee for advice. [ ]
A. Was it how that
B. Was it that how
C. How was it that
D. How it was that