题目

—Mum,        I play computer games? —Yes,you can.But you have to finish your homework first. A.must            B.may              C.will 答案:B设三棱柱的底面为正三角形,侧棱垂直于底面,一个体积是32π3的球与该棱柱的三个侧面和两个底面都相切,那么这个三棱柱的表面积是(  )A.483B.603C.723D.16π
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