初创企业应该记好的账目包括现金账、销售账、费用账和库存账。9）
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The question is ____ it is worth visiting.
A. what
B. as if
C. whether
D. how
He was ill. That is ____ he didn’t come yesterday.
A. when
B. why
C. how
D. that
Along with the letter was his promise ____ he would visit me this coming weekend.
A. which
B. that
C. what
D. whether
His success was because of ____ he had been working hard.
A. that
B. the fact which
C. the fact that
D. the fact
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