颅脑损伤患者脑脊液从口和鼻流出时骨折部位在（）
A.颅前窝
B.颅中窝
C.颅后窝
D.筛板
E.鼻骨
参考答案：A
There existed an obvious ________ between the accounts of the witnesses, so a judgment was
not announced in court.[ ]
A. association
B. authority
C. conflict
D. restriction
常规胸片，对哪种结构显示最差（）
A.肋骨
B.肋软骨
C.锁骨
D.横膈
E.胸椎
