下列哪些情况属于意外伤害风险？（）
A.骨质疏松引起的病理性骨折
B.疯狗咬伤
C.火灾逃生跳窗重伤
D.飞机失事致死
参考答案：B, C, D
—It cost me 30 yuan to get here.
—Well, it was crazy of you to take a taxi _______ you could come by bus as well.
A．while
B．if
C．when
D．because
妊高征孕妇，分娩中出现协调性宫缩乏力，无头盆不称。宜给予何种处理？（）
A.反复灌肠
B.双 * * 按摩
C.肌内注射催产素
D.肌内注射麦角新碱
E.静脉滴注小剂量麦角新碱
