沥青路面设计弯沉是根据设计年限内的累积当量轴次、公路等级、路面结构层的类型确定。相当于路面竣工后第一年不利季节，路面在标准轴载100KN的作用下，测得的最大回弹弯沉。（ ）
查看答案
混凝土路面的强度设计指标是抗拉强度。（ ）
A. 对
B. 错
He took out his money _____ paid for the jacket.
A. and
B. but
C. or
D. for
Use your head, _____ you will find a way.
A. or
B. and
C. before
D. yet
We bought Granny a present, _____ she didn’t like it.
A. and
B. but
C. or
D. so
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