盐炙法炮制药物时,加水溶化食盐时,加水量应为食盐的( )
A.1倍
B.2~3倍
C.3-4倍
D.4~5倍
E.5~6倍
参考答案:D
Could you show me how to ________ this new recorder? [ ]
A. operate
B. listen
C. look
D. learn
酚的羟基可与NaOH反应生成()。
A、苯酚
B、石炭酸
C、苯酚钠
D、不反应