My son came up with the idea     the family get together for a meal every

two weeks．

A．which

B．that

C．when

D．where

过度通气对心脏病病人不利因素是（）

A.冠状动脉痉挛

B.减少心肌供氧

C.使血清钾下降

D.洋地黄化病人引起洋地黄中毒

E.以上全是