测定缓、控释制剂释放度时,至少应测定几个取样点( )。
A.1个B.2个C.3个D.4个E.5个
参考答案:C
解析:[知识点] 缓控释制剂体内、体外评价
下列说法或做法,符合辩证否定原理的是( )
A.污染整治,节能减排
B.是就是,不是就不是
C.改革是社会主义的自我完善和发展
D.将小麦磨成面粉
—What's wrong with you?
— I feel _____. I heard a _____ noise just now. [ ]
A. frightening, frightened
B. frightening, frightening
C. frightened, frightening
D. frightened, frightened