Which is _____ season in Beijing? [ ]
A. better
B. best
C. the best
答案：C
诊断急性阑尾炎最重要的体征是
A．右下腹有肌紧张B．右下腹有反跳痛C．右下腹有明显固定压痛点D．闭孔内肌试验阳性E．结肠充气试验阳性
孕晚期是否能骑车？
