内痔
A．便血量多而鲜红B．便血少而疼痛C．便血污秽而有胆臭D．便血量多而色黑
参考答案：A
Was it _____ he was playing volleyball on the playground _____ he got hurt?
A．that; when
B．when; that
C．that; where
D．where; that
女性，30岁，在颈丛麻醉下施行甲状腺腺瘤切除术，手术顺利
该病人的折线时间为术后
A．2～3天
B．4～5天
C．6～7天
D．8～9天
