路面厚度评定的否决指标是().
A、厚度平均值
B、厚度代表值
C、单点合格值
D、单点极值
参考答案:D
-Your ring is nice.
-__________.[ ]
A. Thank you
B. OK
C. Sorry
D. It's not nice
It was natural that he _____ the days before going home.[ ]
A. count
B. counted
C. had counted
D. counts