试题与答案

在Rt△ABC中,已知AB=6,AC=8,∠A=90度.如果把Rt△ABC绕直线

题型:选择题

题目:

在Rt△ABC中,已知AB=6,AC=8,∠A=90度.如果把Rt△ABC绕直线AC旋转一周得到一个圆锥,其表面积为S1;把Rt△ABC绕直线AB旋转一周得到另一个圆锥,其表面积为S2,那么S1:S2等于(  )
A.2:3B.3:4C.4:9D.5:12

答案:

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参考答案:A解析:《期货从业人员执业行为准则(修订)》第十五条规定,为期货公司提供中间介绍业务的机构的从业人员不得有下列行为:(一)收付、存取或者划转期货保证金;(二)代理客户从事期货交易;(三)中...

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