在填料塔中，汽、液两相进行接触传质的面积就是填料的表面积。
参考答案：对
— ____________ Yang Ling see a film last Sunday?
— No, she ____________.[ ]
A. Do, don't
B. Does, doesn't
C. Did, didn't
宿翳相当于西医学之：（）
A.白内障
B.霰粒肿
C.玻璃体积血
D.前房积血
E.角膜瘢痕
