问题 单项选择题

下列有关建筑基础埋置深度的选择原则,哪一条不恰当().

A.地基为均匀而压缩性小的良好土壤,在承载能力满足建筑总荷载时,基础按最小埋置深度考虑,但不小于900mm 

B.基础埋置于地下水位以下时,基础应埋置于地下水位以下不少于200mm 

C.湿陷性黄土地基上的一般建筑,基础埋置深度1000mm 

D.冻胀土地基上的一般建筑,基础应埋在冰冻线以下不少于200mm

答案

参考答案:A

解析:

根据《建筑地基基础设计规范》(GBJ 7—1989)在满足地基稳定和变形要求前提下,基础应尽量浅埋,当上层地基的承载力大于下层土时,宜利用上层土作持力层。除岩石地基外,基础埋深不宜小于0.5m。

完形填空
In China,a lot of food is wasted every year and the waste food is enough for        people. The food is wasted in restaurants, at home and in schools, etc.
In restaurants or at home,people often order or cook       food. But they can’t eat it up. When they go out of a restaurant, full and happy, they never look back       the uneaten food on the table again.Should Chinese consumers(消费者)feel       for the terrible waste?
In schools, we can often see a lot of students         food away after meals and they only eat the food they like.
Everyone is supposed to have enough food to eat. However, in some places, the food is so little        a lot of people died from hunger.Although China has tried hard to solve the        of hunger over the past thirty years,the job is not finished yet.Food is important to us all.We   can’t live      food.So        is necessary for us to love food and try to eat up everything on our plates.When we eat in restaurants,we should pack up the leftovers(剩菜剩饭).we also need to tell other people to stop       food as soon as possible.
小题1:
A.200 millionB.200 millions C.200 million ofD.200millions
小题2:
A.too manyB.many tooC.too muchD.much too
小题3:
A.inB.atC.onD.up
小题4:
A.interestedB.excitedC.happyD.sorry
小题5:
A.throwB.threwC.thrownD.to throw
小题6:
A.whichB.whenC.whereD.that
小题7:
A.problemB.questionC.dangerD.mistake
小题8:
A.noB.withoutC.hasn’tD.haven’t
小题9:
A.itB.heC.sheD.they
小题10:
A.wasteB.to wasteC.wasting D.to be wasted
判断题