我国的中小企业划分标准主要是根据（）界定的。
A.企业的从业人员
B.营业收入
C.资产总额
D.行业特点
E.实收资本
参考答案：A, B, C, D
煤灰粘度的定义是什么？
If it hadn’t been for the help of my English teacher, I the first prize in the English Writing Competition.
A．would not win
B．would not have won
C．would win
D．would have won
