在起动发动机过程中,假设起动活门的电路失效,能否起动发动机()
A.不能起动
B.排除故障后可以起动
C.人工强行打开起动活门起动
D.用电马达带动起动机起动
参考答案:C
The reason he missed this class was quite different from the one that you explained to me.
A.that B.of which C.why D what
电子商务是集()、()和()于一身的崭新商务模式。