某矩形面积(3m×5m)地基表面上作用三角形分布荷载，荷载最大值p=100kPa，则面积内o点下深度z＝3m处M点的竖向应力为()kPa。
A. 20.87
B. 19.48
C. 18.54
D. 18.89
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One student at UCLA was found cheating ______.
A. when he was loading his class notes into a handheld e-mail device
B. when he was trying to tell the answers to his classmates
C. after the university put in place a new examination-supervision system
D. after his classmate reported his cheating to the authority
我国现阶段，个人收入分配必须贯彻（）。
A. 多劳多得，少老少得的原则
B. 效率优先，兼顾公平的原则
C. 股份制企业职工的按股分红收入
D. 集体企业职工工资奖金收入
A．/B．inC．ofD．on
A. /
B. in
C. of
D. on
某砖石承重结构条形基础上荷载标准值Fk=160kN/m，基础布置和地基土层断面如图所示，基础的埋置深度为1.60m，采用振冲砂石桩置换法处理淤泥质粉质黏土。砂石桩长7.0m(设计地面下8.2m)，直径d＝800mm，间距s=2.0m，等边三角形排列。则复合地基承载力特征值为()kN/m2。
A. 122.69
B. 211.78
C. 156.9
D. 189.67
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