超车时,发现前方机动车正在超车,驾驶人怎么办?()
A.紧跟其后,伺机超越
B.加速强行超越
C.连续鸣喇叭催前车让路
D.停止超车,让前方机动车先超车
参考答案:D
— What bad weather!
— Yes. The radio says it will be even ______ later on. [ ]
A. bad
B. badly
C. worse
D. worst
简述炉衬的破损机理。