注入水水质指标中pH值一般应控制在（）为宜。
A、6.0±O.5
B、6.0±1
C、7.0±O.5
D、7.0±1
参考答案：C
选出正确的单词填空。
1. I like red. You like red. We are the __________ (same, different).
2. My favourite __________ (colour, clothes) is purple.
3. Her favourite dessert is __________ (cookies, dumplings).
4. Kevin likes to __________ (play, write) stories.
5. __________ (Juice, Noodles) are my favourite food.
与发生DIC无关的产科疾病是（）。
A.早产
B.稽留流产
C.羊水栓塞
D.胎盘早剥
E.妊娠高血压综合征
