影响饮片变质的环境因素不包括( )
A.日光B.水分C.温度D.湿度E.空气
参考答案:B
解析:[知识点] 饮片贮存中常见的变异现象
— The weather isn’t good enough for an outing , is it?
— No. We can’t have _________at this time of the year.
A.a nicer day
B.a worse day
C.a worst day
D.so fine a day
论述建立方法库的目的。