10.底面积相等的圆锥和圆柱,它们的体积比是1:2,圆锥的高是9cm,圆柱的高是( )cm.
0 156038 156046 156052 156056 156062 156064 156068 156074 156076 156082 156088 156092 156094 156098 156104 156106 156112 156116 156118 156122 156124 156128 156130 156132 156133 156134 156136 156137 156138 156140 156142 156146 156148 156152 156154 156158 156164 156166 156172 156176 156178 156182 156188 156194 156196 156202 156206 156208 156214 156218 156224 156232 199269
A. | 3 | B. | 6 | C. | 18 | D. | 24 |