钻孔灌注桩施工要求埋没护筒时,护筒中心轴线应对正测量标定的桩位中心,其垂直偏差( )。
A.>1%B.<1%C.>2%D.<2%
参考答案:B
13.About 90 percent of the equipment presented by the administration,as well as the facilities of our own, ______made good use of in teaching.
A.have
B.has
C.have been
D.has been
营运能力比率主要包括()。
A.总资产周转率
B.流动资产周转率
C.存货周转率
D.应收账款周转率
E.净资产收益率