下列证候不属于霍乱的主要临床特征的是
A.发热
B.呕吐频繁
C.里急后重
D.泄泻
E.挥霍撩乱
参考答案:C
—I forgot my mother's birthday!
—________ Better keep it in mind next year.
A.I'm afraid so.
B.So what?
C.You did?
D.No wonder.
细菌的繁殖速度很快,在适宜的环境下,分裂一次只需()
A.2~3分钟
B.2~3小时
C.20~30分钟
D.2~3天