干燥剂干燥法常用于燥剂有
A．分子筛
B．硅胶
C．硫酸
D．氯化钙
E．五氧化二磷
参考答案：B,C,E
阴萎
—Look, I'm sorry to trouble you about this, the music is really _____.
—Sorry, I didn't think you could hear it. [ ]
A. loud
B. quiet
C. beautiful
D. terrible
