碱中毒(alkalosis)
参考答案：
正常人pH为7.35～7.45，凡pH高于7.45为碱血症或碱中毒。
The rescuing soldiers in the helicopters ________ to land on that earthquakestricken area, but failed
again and again.[ ]
A. attempted
B. managed
C. succeeded
D. pretended
饭店投资的辅助功能是（）。
A.经营收益
B.品牌提升
C.物业增值
D.集散社交
