霍乱患者，临床最常见的症状是（）
A.畏寒、发热
B.剧烈吐泻
C.严重腹泻
D.腓肠肌痉挛
E.腹痛、里急后重
参考答案：B
用所给词的适当形式填空。
1. I ________ ( watch) videos on my last day off.
2. Did you have fun ________ (drive)?
3. There ________ (be)a bird and two cats in the tree a moment ago.
4. They ________ (buy) many________ (souvenir) on their last school trip.
5. That sounds ________ (real) boring.
婴儿肠套叠诊断中最不应忽视的体征是（）
A.呕吐
B.阵发性哭吵
C.腹部轻压痛
D.直肠指检有果酱色黏液血便
E.发热
