一个圆锥体和它的等底等高的圆柱体的体积相差12立方厘米,圆锥体的体积是 .
== %=40: = (填小数)
0.6== :10=4.5÷ = %
÷20=6÷8=== :4.
÷10=0.8= : == %
÷ =0.375== :32= %