药品结构易氧化变色的药品为()
A.维生素C
B.磷酸可待因
C.氯化铵
D.青霉素
E.硫酸亚铁
参考答案:A
资产净利率作为反映企业盈利能力的指标,其计算式为( )。
A.(净利润/平均资产总额)×100%
B.(净利润/平均所有者权益)×100%
C.(净利润/销售收入)×100%
D.(净利润/负债总额)×100%
Your son doesn’t look__. You’d better have him ___ by a doctor.
A.good, examined
B.nice, examined
C.well. examined
D.fine, examined