一质点由位置A向北运动了4m到达C，又转弯向东运动了3m到达B，在这一过程中质点运动的路程是多少？运动的位移是多少？方向如何？
7m；5m，北偏东37°
一 Where have you been all day?
— I _____ some former classmates and I couldn't get back until it was dark. [ ]
A. have met
B. met
C. would meet
D. had met
女性，36岁。半小时前骑车摔倒，车把撞击左胸部及腹部。X线检查左肋骨骨折，腹腔穿刺抽出不凝血。感觉腹部疼痛，胸闷，遂急诊入院。应考虑（）。
A.肠破裂
B.脾破裂
C.肾破裂
D.肝破裂
E.肠系膜血管损伤
