Do you know on which _______ to go down if there is a fire?A.ladder B.stair B.hose B.reel
问题描述：
Do you know on which _______ to go down if there is a fire?A.ladder B.stair B.hose B.reel
Do you know on which _______ to go down if there is a fire?
A.ladder B.stair B.hose B.reel
Do you know on which _______ to go down if there is a fire?
A.ladder B.stair C.hose D.reel
答
B,
stair楼梯,A,*应该climb down,CD意思不对
翻译：你知道火灾发生时（应该）从哪个楼梯下去（逃生）吗?