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jj 求教.急!
DC 1. the volume of a right cylinder? ans:C
(1) the circumference of each base of the cylinder is 4π
(2) the distance between the center of the cylinder and each base is 5
right cylinder 是不是 截面是正方形的圆柱体? 如果是的话,应该是选D 吧? |
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