提示胎儿窘迫的重要指标是（）
A.胎动减少
B.羊水有胎粪污染
C.新生儿误吸
D.胎儿心率变化
E.胎儿头皮血pH降低
参考答案：E
More highways have been built in China, ______ it much easier for people to travel from one place to another.
A．having made
B．made
C．to make
D．making
做好氨合成系统排惰有利于合成反应的进行。
