哪一项不属于骨盆骨折的检查：（）。
A.下肢短缩试验
B.骨盆分离挤压试验
C."4"字试验
D.直腿抬高试验
E.脐棘距的测量
参考答案：A
Would you mind _____ it again? Try to make yourself ______. [ ]
A. say, understood
B. to say, understand
C. saying, understand
D. saying, understood
麝香具有特异强烈香气的成分是（）
A.麝香醇
B.麝香酮
C.麝吡啶
D.雄甾烷
E.挥发油
