新建排水管道与其它管道（线）交叉，下列不属于高程发生冲突时采取措施的是（）
A.暗渠法
B.倒虹管法
C.单孔法
D.检查井法
参考答案：C
按要求写句子。
1. May I go to Beijing by myself? (作否定回答)
_________________________________________________________________________
2. It's about eight hundred metres from the store to the post office. (对划线部分提问)
____________ ____________ is it from the store to the post office?
3. We arrive in Beijing on February first. (对划线部分提问)
____________ ____________ you ____________ in Beijing?
铜蓝蛋白
