1~9;0~3;0~6;0;3~9;9
Laura was away in Paris for over a week.When she got home,there was a pile of mail________for her. (2013·辽宁,28)
A.waited
B.to wait
C.waiting
D.was waiting
某建筑柱下桩基础采用9根灌注桩,桩身直径为d=377mm,现场静载荷试验,三根试桩的单桩竖向极限承载力实测值分别为Q1=930kN、Q2=950kN、Q3=940kN。试问:
确定单桩竖向承载力特征值Ra(kN)最接近下列()项。
A.465
B.470
C.475
D.480