胆道蛔虫病的典型表现有
A.中上腹"钻顶样"剧烈绞痛
B.突然发病、间歇期明显
C.常伴中上腹反跳痛及肌紧张
D.可伴轻度黄疸
E.畏寒发热、胆囊肿大
参考答案:A,B,D
Xuqian loves jokes and she never stops . [ ]
A. to speak / talking
B. to tell / talk
C. to say / speak
D. to tell / talking
命令的主要特点是什么?