One day after school, on the way to home, Xiao Ming found a   1.     

water pipe in the street. He turned off a tap and splashed water  2.     

here and there. At this moment , Xiao Gang happened to be    3.      

passing by. Xiao Ming splashed him with water and make him   4.      

all wet. Xiao Ming ran away with turning off the tap.    5.     

When Xiao Gang saw this, she went over and turned off the water.  6.      

He was angry because he thought water shouldn’t wasted.     7.     

Then he went home and wrote a notice where read “ save water”  8.     

He put them up on the wall near the tap. After some time, Xiao Ming 9.     

went back and saw the notice. He felt sorry at what he had done. 10.    

光面冷却壁用于（）部位。

A．炉底

B．炉身

C．炉缸

D．炉腹