What's the main idea of paragraph one?
A. The author is a student of an American university.
B. There are differences between America and Lebanon.
C. American system of college education differs from Lebanese one.
D. Studying is hard.
查看答案
A.firstB.lastC.secondD.popular
A. first
B. last
C. second
D. popular
A.fightB.spiritC.offenceD.competition
A. fight
B. spirit
C. offence
D. competition
【B2】
A. part
B. parts
C. a part
某积水低洼场地进行地面排水后在天然土层上回填厚度5.Om的压实粉土,以此时的回填面标高为准下挖2.0m,利用压实粉土作为独立方形基础的持力层,方形基础边长4.5m,在完成基础及地上结构施工后,在室外地面上再回填2.0m厚的压实粉土,达到室外设计地坪标高,回填材料为粉土,荷载试验得到压实粉土的承载力特征值为150kPa,其他参数见图,若基础施工完成时地下水位已恢复到室外设计地坪下3.0m(如图所示)地下水位上下土的重度分别为18.5kN/m3和20.5 kN/m3,按《建筑地基基础设计规范》 (GB 50007—2002)计算深度修正后地基承载力的特征值,其结果最接近()。(承载力宽度修正系数ηb=0,深度修正系数ηd=1.5)
A. 198kPa
B. 193kPa
C. 188kPa
D. 183kPa