集电器与架线的接触方式有()、()。
参考答案:滑动接触;滚动接触
.If Bush _____his sister to attend the party, she will certainly be glad. She hasn't met Bush for years.
A.allows
B.promises
C.demands
D.suggests
会计期末进行试算平衡时,试算平衡了,也不能说明账户记录绝对正确。( )