【Someeducatorsarguethataudio-visualdeviceshavenotmadeassignificantacontributiontoeducation_________.A.asitwasfirstexpectedB.aswasfirstexpectedC.sowasfirstexpectedD.astobefirstexpectedA为什么错?】
<p>问题：【Someeducatorsarguethataudio-visualdeviceshavenotmadeassignificantacontributiontoeducation_________.A.asitwasfirstexpectedB.aswasfirstexpectedC.sowasfirstexpectedD.astobefirstexpectedA为什么错?】<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">秦航的回答：<div class="content-b">网友采纳 选B这里考察as...as的用法,表示“像...一样”,所以C排除由于设备是被期望,用被动语态beexpected,前面用了havenotmadeassignificantacontributiontoeducation是过去完成时,所期望发生在作出巨大贡献之前所...
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