当坐骨结节间径<8cm时，应进一步测量（）.
A.出口前矢状径
B.骶骨外径
C.出口后矢状径
D.髂棘间径
E.骶耻内径
参考答案：C
— You must have seen the great waterfall there.
— Sure. It is really a wonder, _____ that still seems right in front of me. [ ]
A. one
B. it
C. that
D. which
高度恶性子宫内膜间质肉瘤的核分裂数是：（）
A．≥5个/10个高倍视野
B．≥10个/10个高倍视野
C．≥15个/10个高倍视野
D．≥20个/10个高倍视野
