原始凭证对于经济业务的发生和完成具有证明效力，未来交易或事项的文件不能作为记账的依据。
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收款凭证贷方科目只能填写“库存现金”或“银行存款”。
A. 对
B. 错
There is some ____ on the plate.
A. apple
B. bread
C. banana
D. sandwich
There in the next room.
A. is some boys
B. are some boys
C. are any boys
D. is any boys
There a pen and some pencils on the desk.
A. is
B. are
C. has
D. be
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