在推荐剂量下,无严重不良反应()
A.疗效确切的要求
B.质量稳定的要求
C.使用安全的要求
D.应用方便的要求
E.价格合理的要求
参考答案:C
Some people suggest changing the date for the college entrance exams into ______ Saturday and Sunday of the first week of June, which I think is ______ good advice.
A./ ; /
B.the; the
C.the; a
D.the; /
YJ17卷烟机通过手动进刀方式可补偿切烟刀片在刀盘外部的()。