宣气化湿法的代表方是（）
A.三仁汤
B.王氏连朴饮
C.杏仁滑石汤
D.茯苓皮汤
E.温胆汤
参考答案：A
My cousin _________ as a volunteer in an old people's home since she finished her college.[ ]
A. works
B. Worked
C. is working
D. has worked
某车间工艺生产过程散发的主要有害物质包括苯胺、丙烯醇和氯化物，已知将上述三种有害物稀释至国标规定的接触限值所需空气量分别为8.2m3/s、5.6m3/s、2.1m3/s。试问：该车间的全面通风换气量应是下列哪一项值
A．8.2m3/s B．10.3m3/sC．7.7m3/s D．15.9m3/s
