滴眼液的制备
滴眼液的pH为（）
A.5.0～9.0
B.3.5～10.0
C.2.0～8.0
D.5.0～10.0
E.4.0～9.0
参考答案：E
不发生机化的病灶是
A．上皮化生B．新月体C．血肿D．纤维蛋白样坏死
We're just trying to reach a point _____ both sides will sit down together and talk. [ ]
A. where
B. that
C. when
D. which
