一个圆柱底面半径2厘米,高8厘米,则它的体积是多少?
3.14×22×8,
=3.14×4×8,
=100.48(立方厘米);
答:它的体积是100.48立方厘米.
Things should here before you enter the Great Museum. [ ]
A. keeps
B. keep
C. be kept
D. are kept