题目内容

I have got a loaf of bread; now I' m looking for a knife______.

A. to cut it with
B. to cut with it
C. with it to cut
D. with it cutting

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This factory turns out______ as they did a decade ago.

A. twice as many motorbikes
B. twice motorbikes as many
C. twice motorbikes as much
D. motorbikes as twice much

The result must be accurate, because all the calculations have been done by an______computer.

A. electric
B. electrical
C. electron
D. electronic

已知矩形基础底面的压力分布为三角形，最大边缘压力为Pmax，最小边缘压力为零，基础的宽度为B，长度为L，基础底面积为A，抵抗矩为W，传至基础底面的竖向力为N。下列的表述中符合上述基础底面压力分布特征的正确说法是()。

承台下为4根直径为600mm钻孔灌注桩，桩长15m，承台平面尺寸及基桩分布如右图所示，按《建筑桩基技术规范》(JCJ 94—94)分析承台底土阻力群桩效应系数ηc值，正确答案为()。

A. 0.297
B. 0.380
C. 0.324
D. 0.421