股骨颈干角平均为()。
A.120°
B.125°
C.127°
D.130°
E.140°
参考答案:C
解析:股骨颈干角为110°~140°,平均为127°。
23. Each member country of WTO must ______ its laws and regulations and compete on the principle of fairness and co-operation.
A.cater to
B.correspond to
C.relate to
D.submit to
超声诊断胆囊结石与肾结石,其可靠性比较()
A.两者的可靠性差不多
B.两者均不理想
C.胆囊结石优于肾结石
D.肾结石优于胆囊结石
E.只有较大的。肾结石优于胆囊结石