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【单选题】
水泥土搅拌桩单桩竖向承载力特征值及Rt=99kN，采用正方形布桩，桩距s=950mm，桩间土承载力折减系数β=0.30。初步设计时，按《建筑地基处理技术规范》JCJ79—2002规定估算，试问，其复合地基承载力特征值fsDk(kPa)，最接近于下列何项数值?A.
79
B.
129
C.
136
D.
148
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【单选题】Unemployment insurance increases the amount of frictional unemployment by:
A.
making workers more frantic in their search for new jobs.
B.
inducing workers to accept the first job offer that they receive.
C.
making employers more reluctant to lay off workers
D.
softening the economic hardship of unemployment.
【单选题】The natural unemployment rate
A.
falls with an increase in cyclical unemployment.
B.
rises with an increase in structural unemployment.
C.
rises with an increase in cyclical unemployment.
D.
rises with a decrease in frictional unemployment.
【单选题】Frictional unemployment is
A.
unemployment associated with business cycle recessions.
B.
unemployment associated with the changing of jobs in a changing economy.
C.
long-term unemployment.
D.
unemployment associated with declining industries.
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