Man’sfirstrealinventionandoneofthemostimportantinventionsinhistorywasthewheel.Alltransportation(运输)andeverymachineintheworlddependonit.Thewheelisthesimplestyetperhapsthemostremark
<p>问题：Man’sfirstrealinventionandoneofthemostimportantinventionsinhistorywasthewheel.Alltransportation(运输)andeverymachineintheworlddependonit.Thewheelisthesimplestyetperhapsthemostremark<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">马应龙的回答：<div class="content-b">网友采纳 答案：C;A;C;C;D
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