定额的分类中,概算定额用以编制概算,是进行设计方案技术经济比较的依据,也可以用做编制施工组织设汁时确定劳动力、材料、机械台班需要量的依据。( )
参考答案:对
--- It was really very kind of you to give me a lift home.
--- Oh, don’t mention it. I past your house anyway.
A.was coming
B.will come
C.had come
D.have come
入井人员必须戴携()、()和()。