泄压设施宜采用（）。
A、轻质面板
B、轻质墙体
C、易于泄压的门、窗
D、易于泄压的窗
E、普通玻璃
参考答案：A, B, C, D
慢性肺源性心脏病急性加重时，使用利尿剂可能引起（）
A.低钾低氯性碱中毒
B.代谢性酸中毒
C.呼吸性酸中毒合并代谢性酸中毒
D.呼吸性碱中毒合并代谢性酸中毒
E.稀释性低钠血症
— It's raining heavily and we can't go climbing today.
— If only the weather _______ fine. [ ]
A. were
B. is
C. would be
D. had been
