______ as "the census taker of the sky", Annie Jump Cannon contributed considerably to the
A. Known
B. Knowing
C. To know
D. Knowledge
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Helen was much kinder to her youngest child than she was to the others, ______, of course,
A. who
B. that
C. what
D. which
Why Chang' aa is popular in poor areas？
A. It is very cheap.
B. It can make people highly dizzy.
C. It provides way for poor people to escape from the misery of slum living.
D. People who sell it can get great profit.
任何一笔经济业务，无论是否涉及明细分类账户，都应该进行平行登记。()
A. 正确
B. 错误
对于会计账簿的更换，一些变动较小的明细账，可以连续使用，不必每年更换。()
A. 正确
B. 错误
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