问题
单项选择题
下列关于通气管道设置的叙述中，不符合现行《建筑给水排水设计规范》的是（）.
A.生活排水管道的立管顶端，应设置伸顶通气管
B.伸顶通气管不能单独伸出屋面时，可设置混合通气管道
C.在建筑物内不方便设置通气管时，可设置吸气阀代替通气管
D.通气管道不得不与风道和烟道连接
答案
参考答案：C
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下列关于通气管道设置的叙述中，不符合现行《建筑给水排水设计规范》的是（）.
A.生活排水管道的立管顶端，应设置伸顶通气管
B.伸顶通气管不能单独伸出屋面时，可设置混合通气管道
C.在建筑物内不方便设置通气管时，可设置吸气阀代替通气管
D.通气管道不得不与风道和烟道连接
参考答案：C
One day in April, No. 1 Middle School held a special activity called “Food.Street” on the playground in Xi’an.小题1:. The students in each class formed some groups. Each groupsold different kinds of foods.小题2:Thestudentscookeddeliciousfoodsuchasfriedchicken, potato chips and vegetables. 小题3:Thecustomerswereallthestudents,teachersand parents. 小题4: “It’s really hard work.” said one of the students, “We must make a plan before the cooking. We must know the cost of the food. Also, we must learn how to serve customers well.” “ This activity is to give a practical(实践的）chance to the students,” said a teacher, “ What’s more,the students will not only learn how to make money by their own hands, but also know the meaning of life.”
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