衡量公司盈利能力的指标有（）
A.销售毛利率
B.销售净利率
C.资产收益率
D.股东权益收益率
E.主营业务利润率
参考答案：A, C, E
If he ____ my advice, he wouldn'thave lost his job. [ ]
A. followed
B. should follow
C. had followed
D. would follow
反应系统注水的目的是什么？
