“肾者，胃之关也”主要是针对（）

A.肾主宰水液代谢的作用

B.肾中精气的蒸腾气化作用

C.肾司二便的作用

D.肾的固摄作用

E.以上都不是

If the ratio of men to women employed by Company S in 1975 was , what is the ratio of men to women employed by Company S in 1976 ？（）

(1)Company S employed 20 more women in 1976 than in 1975.

(2)Company S employed 20 more men in 1976 than in 1975.

A．条件(1)充分，但条件(2)不充分．

B．条件(2)充分，但条件(1)不充分．

C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

D．条件(1)充分，条件(2)也充分．

E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．