He___aknowledgeofthelanguagebycarefulstudy.选项:a、obtainedb、earnedc、gainedd、acquired能否能解释下该如何选择,
<p>问题：He___aknowledgeofthelanguagebycarefulstudy.选项:a、obtainedb、earnedc、gainedd、acquired能否能解释下该如何选择,<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">李巧真的回答：<div class="content-b">网友采纳 D,虽然四个都解释为得到,但第四个是用来得到知识的
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