下列关于正常枕先露分娩机转顺序，正确的是
A. 衔接一下降→俯屈→内旋转→仰伸→复位及外旋转
B. 衔接→俯屈→下降→内旋转→仰伸一复位及外旋转
C. 衔接→下降→内旋转一俯屈→仰伸→复位及外旋转
D. 下降→俯屈一→衔接→内旋转一仰伸→复位及外旋转
E. 下降→衔接→俯屈一内旋转→仰伸→复位及外旋转
The school________this month for summer vacation.
A. is closed
B. closed
C. would close
D. would be closed
With the ceremony opened , a flag is_________
A. being raised
B. risen
C. being risen
D. raising
一 Have you phoned Dr. Smith?— Yes, he_____back this afternoon.
A. is to expect
B. expects
C. is expected
D. will expect
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