TRP500喷枪雾化空气用于雾化涂料。( )

Li Ming and Alice walk quickly ______________ the school. [ ]

A. to

B. for

C. at

- How do you like the concert given by F.L.R.?

- Exciting, _______ one piece of the music wasn't played quite well.

A．though

B．because

C．so

D．And

经营者造成他人死亡的负什么法律责任？

下图给出了物体的V面和W面投影，则H面投影应为（）

A.

B.

C.

D.

设有下列宏定义： #define A2 #define B(A+3) 则执行赋值语句"k＝b*20;" (k为int型变量)后，k的值是______。