原始凭证审核的内容包括（）。

A.经济业务内容是否真实

B.会计科目使用是否正确

C.应借应贷方向是否正确

D.经济业务是否有违法乱纪行为

The experiment has _____ the possibility of the existence of any life on that planet, but it does not mean

there is no life on other planets. [ ]

A. found out

B. pointed out

C. ruled out

D. carried out