粘稠石油沥青材料的三大指标是()。
A.强度、稳定性、抗滑性
B.针入度、延度、软化点
C.温度稳定性、气候稳定性、不透水性
D.和易度、强度、耐久度
参考答案:B
It was a long joumey , but we _______arrived. [ ]
A. constantly
B. eventually
C. traditionally
D. occasionally