志贺菌随饮食进入人体内致病的潜伏期一般是()
A.1天内
B.1~3天
C.4~7天
D.8~9天
E.2周以后
参考答案:B
— Would you like to join in the English corner?
—___________. What time is it?
A.I hope so
B.I’m afraid not
C.I’d love to
D.I agree
治疗重症肌无力,应首选
A.毛果芸香碱
B.阿托品
C.琥珀胆碱
D.毒扁豆碱
E.新斯的明