票据和结算凭证的金额必须以中文大写和阿拉伯数字同时记载，二者必须一致，否则以中文大写为准。()
参考答案：错
— Were you in time for the lecture?
— If I ______ told earlier, I would have. [ ]
A. had been
B. was
C. were to be
D. should be
为什么电机车采用直流串激电动机作为动力源？
