红河州文山州2024届高中毕业生第二次复习统一检测数学.考卷答案

红河州文山州2024届高中毕业生第二次复习统一检测数学.考卷答案试卷答案,我们目前收集并整理关于红河州文山州2024届高中毕业生第二次复习统一检测数学.考卷答案得系列试题及其答案，更多试题答案请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)

红河州文山州2024届高中毕业生第二次复习统一检测数学.考卷答案试卷答案

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W:Yes,Idid.Andyouusedtobeshortatthattime.Butnowyouaretall.M:Right.Ialsorememberyouusedtobeactiveandliketalkinginclass.YouwereinterestedinChineseandEnglish.W:That'strue.Youwerecarefulandcreative.Andyouusedtobegoodatmathandphysics.M:Thankyou.Who'sthatgirlinareddress?W:She'sAmy.Sheismybestfriend.M:Whatdidsheusetobelike?W:Sheusedtobeseriousbutnowsheismoreoutgoing.C)请听下面一段祺白，根据独白内容完成下列句子，每个空格不超过3个单词

听独白前你将有50秒钟的时间阅读句子内容

独白读两遍

Iusedtoarguewithmyfatherbecausehespentmostofhis:timeworkingandhardlylistenedtome.ThenonaMonday,Itookpartinatwo-dayactivityforteenagers.Itreallychangedmylife.About50teenagerswerethere.Inthemorning,Imetalotofexcellentpeople.Italkedwiththemhappily.OnTuesday,theteacherplayedaninter-estinggamecalled"ChocolateorToys'withus.Heaskedagirlwhichshelikedbetter,chocolateortoys.Shechosechocolate.Thenheaskedhertochooseagainbetweenchocolateandchocolate.Ofcourse,shedidn'thaveachoice.Theexerciseshowedusthatsome-timeswedon'thaveachoiceinlife,andthatsometimeswehavetoacceptsomething.Afterthat,Irealizedit.Icouldn'tchooseanotherfather,butIcouldtrytobeabetterperson.Iwilltrytounderstandmyfather.

分析（2$\sqrt{5}$）²=20=10+10=10+$\sqrt{100}$，（$\sqrt{3}$+$\sqrt{7}$）²=10+2$\sqrt{21}$=10+$\sqrt{84}$，即可比较大小．

解答解：（2$\sqrt{5}$）²=20=10+10=10+$\sqrt{100}$，（$\sqrt{3}$+$\sqrt{7}$）²=10+2$\sqrt{21}$=10+$\sqrt{84}$
∵$\sqrt{100}$＞$\sqrt{84}$，
∴2$\sqrt{5}$＞$\sqrt{3}$+$\sqrt{7}$．
故答案为：＞

点评本题考查了不等式的大小比较，关键是平方，属于基础题．