When________toahighenoughtemperaturewatercanchangeintovapour.A.heatingB.beingheatedC.heatedD.havingheated
<p>问题：When________toahighenoughtemperaturewatercanchangeintovapour.A.heatingB.beingheatedC.heatedD.havingheated<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">景秀并的回答：<div class="content-b">网友采纳 答案C 题意“当被加热到一个足够高的温度时,水会变成气体.”这是一个省略了的状语从句,原句应是Whenwaterisheatedtoahightemperature,when引导的状语从句可省略主语和系动词be."
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