计算的值为()。
A.A
B.B
C.C
D.D
参考答案:B
解析:
若只有一项,即;若为两项,以此类推,,选B。
---Why didn’t you accept such a good job?
---Oh, it’s _________ my ability, so I had to give it up.
A.across
B.under
C.over
D.beyond
枕前位胎头娩出后的第一个动作是()
A.衔接
B.仰伸
C.俯屈
D.复位
E.内旋转