润滑离心泵的轴承应选用（）。
A.齿轮油
B.压缩机油
C.机械油
D.主轴油
参考答案：D
以下不属于会计账簿类的会计档案是( )。
A．固定资产卡片
B．会计移交清册
C．明细账
D．日记账
— does your mother exercise?
—She hardly ever exercises. She doesn't like sports.[ ]
A. When
B. What sports
C. What
D. How often
