742.If fuel or lubricating oil spills, clean the area immediately A wet surface is dangerous and can cause you to fall ( )

　When fuel or lubricating oil overflows, clean the area at once. There exists a danger due to the wet surface that can cause falling.

　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.

　The area contaminated by fuel or lubricating oil shall be cleared up firstly because the dirty surface brings a risk of fall.

正确答案：A

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