[填空题]
A water tank is the i8yjfu1 y1b 7)n4rpk+2zhop ashape of8 cd)oh l/rgaer))d 1s a cube with sides 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? (please only input numerical value without units and without the $\pm$ symbol.)