采用爆夯法密实基床时，布药方式可分别选用()。
A.点布
B.线布
C.面布
D.立体布
E.漂浮布
参考答案：A, B, C
My bag is _____. I need to mend it. [ ]
A. wearing out
B. worn out
C. broke
D. new
符号QBN1-25D表示什么意义？
