当举高车伸缩臂仰角到达()时,以及伸缩臂全部伸出或全部缩回时,运转会自动停止。
A.70°或-2°
B.70°或-3°
C.80°或-3°
D.80°或-2°
参考答案:C
根据句意及汉语提示完成句子。
1. New York is a great place _____ (看) films.
2. We sent a card with _____ (圣诞) greetings.
3. Nie'er was a famous _____ (音乐家).
4. _____ (记得) to bring your book here.
5. She dressed in the _____ (最新的) Paris fashion.
6. Try to _____ (描述) exactly how it happened.
7. Read the text, and then answer the _____ (下面的) questions.
8. She went to Beijing three years _____ (后) .
第一产程宫颈扩张曲线,正确的是指()
A.潜伏期是指从感觉宫缩开始到宫颈扩张3cm
B.潜伏期最大时限为16小时
C.活跃期的加速阶段约需4小时
D.活跃期最大加速期,约需8小时
E.活跃期减速期,约需4小时