___________he is living now is not known to anybody.
A. When
B. If
C. Whether
D. What
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___________ I can’t understand is ___________ he changed his mind .
A. That; that
B. What; why
C. Which; how
D. That; why
Tha’s ___________ the Party called on us to do.
A. why
B. what
C. how
D. that
Jane is no longer _________ she was four year ago.
A. what
B. which
C. that
D. when
对原始凭证的审核内容包括( )。
A. 真实性
B. 合法性
C. 完整性
D. 正确性