[填空题]
A water tank is the shmar ;(3 /ldeyjyku93a:mxus a2(b 9i lape of a cube with smy*2j f jl8o5epd)u dp60ao;h ides of $3.00 \mathrm{~m}$. Each side is measured with an uncertainty of $1.0 \%$. What is the absolute uncertainty in the volume of the tank? (Give your answer without a unit and to 2 significant figures)