They were lucky to _____ from the burning car. [ ]
A. stop
B. leave
C. escape
D. chase
答案:C
2005版《中国药典》一部规定薄膜衣片的崩解时限为
A.5min内
B.15min内
C.30min内
D.60min内
E.120min内
论文投稿成功的原因有()。
A、专业论文为重点
B、期刊选择要适合
C、权威期刊敢投稿
D、学术争论须有据