水泥稳定碎石强度试验时，试件在北方地区养生期间温度应保持为（）。
A.20℃
B.25℃
C.20℃±2℃
D.25℃±2℃
参考答案：C
He asked me ____ with me. [ ]
A. what the matter is
B. what the mater was
C. what's the matter
D. what was the matter
用规范法计算地基最终沉降量时，考虑相邻荷载影响时，压缩层厚度Zn确定的根据是：
A.σZ/σCZ≤0.1
B.σZ/σCZ≤0.2
C.ΔSn≤0.025∑ΔSi
D.Zn＝b(2.5-0.4lnb)
