关于病理性骨折病因的描述中,正确的有
A.骨质疏松
B.骨囊肿
C.骨转移瘤
D.急性骨髓炎
E.骨质软化
参考答案:A,B,C,D,E
She told us a story, and her voice sounded _______. We’re interested in it.
A. sweet B. small C. clearly
肺动脉干起自()
A.右心房
B.左心房
C.左心室
D.主动脉前庭
E.动脉圆锥