自主录题

自主录题一试题标签

省市校区

阶段科目

题型题类

年份题源

存放类型

已选考点

难度系数

一星二星三星四星五星

在线训练

是否

自主录题一试题内容

试题内容

题型种类

选择题 非选择题

选项效果

一行4选项 一行2选项 一行1选项

选项内容

A B C D E F G H

选择答案

自主录题一试题解答

试题解答

<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">解：<i>A</i>、∠1＝∠2，根据内错角相等，两直线平行进行判定，故正确；</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><i><span style="line-height:150%"><span style="font-family:宋体">B</span></span></i><span style="line-height:150%"><span style="font-family:宋体">、∵∠1＝∠2且∠3＝∠4，由图可知∠1+∠2＝180°，∠3+∠4＝180°，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∴∠1＝∠2＝∠3＝∠4＝90°，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∴<i>a</i>∥<i>b</i>（内错角相等，两直线平行），</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">故正确；</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><i><span style="line-height:150%"><span style="font-family:宋体">C</span></span></i><span style="line-height:150%"><span style="font-family:宋体">、测得∠1＝∠2，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∵∠1与∠2既不是内错角也不是同位角，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∴不一定能判定两直线平行，故错误；</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><i><span style="line-height:150%"><span style="font-family:宋体">D</span></span></i><span style="line-height:150%"><span style="font-family:宋体">、在△<i>AOC</i>和△<i>BOD</i>中，</span></span></span></span></span><br />
<img height="60" src="/uploads/meth/20210402/318f4f9c45a88c72a26e131c4c5758ea.png" width="100" /><span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∴△<i>AOC</i>≌△<i>BOD</i>，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∴∠<i>CAO</i>＝∠<i>DBO</i>，</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">∴<i>a</i>∥<i>b</i>（内错角相等，两直线平行），</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">故正确．</span></span></span></span></span><br />
<span style="font-size:10.5pt"><span style="line-height:150%"><span style="font-family:Calibri"><span style="line-height:150%"><span style="font-family:宋体">故选：<i>C</i>．</span></span></span></span></span>

自主录题一试题点评

智能点评

手动点评