对 * * 自净作用具有直接影响的激素是()
A.雌激素
B.孕激素
C.雄激素
D.促卵泡素
E.黄体生成素
参考答案:A
需加入还原剂才能发生的变化是( )
A.Cl-→Cl2
B.CO32-→CO2
C.SO32-→SO42-
D.Fe3+→Fe2+
Which of the following is tree about Susan
A.Susan was on a different way.
B.Susan was on a different road.
C.Susan dealt with it in a different way.
D.Susan approached me in a different way.