其作用是使彩色底片稳定，不褪色还能对烘干前的胶片坚膜作用的是（）
A.彩色显影液
B.彩色定影液
C.彩色漂白液
D.彩色稳定液
参考答案：D
I’m sorry to tell you it is nearly five months ___ smith got injured in the leg, but I think it won’t be long ____ he completely recovers.
A．after; when
B．before; since
C．that; when
D．since; before
扑尔敏的药品通用名是
A．氯苯那敏
B．苯海拉明
C．曲吡那敏
D．阿司咪唑
E．西替利嗪
