“嫦娥一号”探月成功是我国航天事业的又一伟大成就,卫星正常

 “嫦娥一号探月成功是我国航天事业的又一伟大成就,卫星正常工作的能源有的来自于太阳能,为了顺利完成能量转化需一种良好的半导体材料(非金属单质),该元素在地壳中含量仅次于氧,则这种半导体材料是

   A.铝           B.硅            C.金刚石               D.硫

答案

B

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