输入药液浓度过大可能引起（）
A.酸中毒、高血钾
B.碱中毒、高血钾
C.空气栓塞
D.肺水肿
E.静脉炎
参考答案：E
根据句意及汉语提示填空。
1. We should do our best to help these foreign _______ (游客).
2. Bad _______ (习惯) can make us sick.
3. We shouldn't _______ (花费) too much time on it.
4. Robots are very useful in the _______ (现代的) world.
5. I'm going to spend the weekend just ________ (放松).
益寿堂的用途是什么？
