×
单选题
If fuel or lubricating oil spills, clean the area immediately. A wet surface is dangerous and can cause you to fall.
A
When fuel or lubricating oil overflows, clean the area at once. There exists a danger due to the wet surface that can cause falling.
B
Clean the area where fuel or lubricating oil are knocked over without delay because the wet surface that may lead to the fall is dangerous.
C
The area contaminated by fuel or lubricating oil shall be cleared up firstly because the dirty surface brings a risk of fall.
答案解析
正确答案：A
