会计科目是按照( )对各会计要素的具体内容作进一步分类核算的项目。
A.会计对象
B.业务内容
C.经济内容
D.会计准则
参考答案:C
How can school ban mobile phones completely __________ some of the parents simply don’t follow the rule?
A.unless
B.when
C.until
D.before
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