坐骨结节间径<8cm，耻骨弓角度<900，宜进一步测量（）.
A.对角径
B.坐骨切迹宽度
C.出口前矢状径
D.出口后矢状径
E.坐骨棘间径
参考答案：D
上午9时整，时针和分针所组成的角是______角．
While the government says there is a(n) ________supply of houses, prices of apartments have
been going up these years. [ ]
A. parallel
B. absent
C. abundant
D. short
