总分类帐与明细分类帐平行登记的要点是（）。
A.用途不同
B.用途相同
C.结构不同
D.结构一致
E.余额方向相反
参考答案：A, C, D
下列职务必须由实行区域自治的民族公民担任的是______。
A．自治区人大常委会主任
B．自治州人大常委会副主任
C．自治县县长
D．自治县党委书记
— Don't you know your computer has been infected with viruses?
— Really, no wonder it hasn't ________ as well as before. [ ]
A. appeared
B. operated
C. managed
D. controlled
