下列业务中,财务公司可从事的业务有()。
A.同业拆借
B.承销成员单位企业债券
C.协助成员单位实现境外款项收付
D.实业投资
E.成员单位融资租赁
参考答案:A, B, E
The boy was so tired that he fell asleep ______ his mother could take off his clothes.
A.before
B.after
C.while
D.when
掘进机的刮板运输机刮板链条速度低或不动的原因是什么?