根据句意，用括号中所给单词的正确形式填空。

小题1:Twenty percent of the students             (exercise) every day.

小题2:Jack is the            (win) of the dancing competition.

小题3:He sat            _(comfortable) on the sofa watching TV.

小题4:Kids are waiting for you          (tell) them a story.

小题5:Linda is the            (outgoing) of my friends.

硫酸镁治疗妊高征的作用机理除外（）

A.利尿

B.消除脑水肿

C.解除血管痉挛

D.使骨骼肌松弛

E.降低中枢神经细胞兴奋性