修改20193,20195题面

This commit is contained in:
wangweiye7840 2023-09-25 16:34:33 +08:00
parent e2e3ae1197
commit c3a6ebcec9
2 changed files with 13 additions and 18 deletions

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@ -635,21 +635,17 @@
"019296"
],
"work_inclass": [
"009462",
"010079",
"010086"
"009462"
],
"homework": [
"010079",
"019295",
"020169",
"020170",
"020171",
"020172",
"020173",
"020174",
"020175",
"020176",
"019297",
"019838",
"019298"
],
"remarks": ""
@ -669,6 +665,7 @@
],
"examples_basic": [
"011841",
"009464",
"011842",
"011844",
"011845",
@ -681,21 +678,17 @@
],
"work_inclass": [
"009463",
"009464",
"010089",
"010097",
"010099"
"010089"
],
"homework": [
"020186",
"020189",
"020190",
"020191",
"020193",
"020194",
"010099",
"020195",
"020196",
"020197",
"010097",
"020198"
],
"remarks": ""

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@ -518407,7 +518407,7 @@
},
"020193": {
"id": "020193",
"content": "若$a>0$, $b>0$, 且$a\\ne b$, 则下列各式恒成立的是\\bracket{20}.\n\\fourch{$\\dfrac{2ab}{a+b}<\\dfrac{a+b}2<\\sqrt {ab}$}{$\\sqrt {ab}<\\dfrac{2ab}{a+b}<\\dfrac{a+b}2$}{$\\dfrac{2ab}{a+b}<\\sqrt {ab}<\\dfrac{a+b}2$}{$\\sqrt {ab}<\\dfrac{a+b}2<\\dfrac{2ab}{a+b}$}",
"content": "若$a>0$, $b>0$, 且$a\\ne b$, 则下列各式恒成立的是\\bracket{20}.\n\\twoch{$\\dfrac{2ab}{a+b}<\\dfrac{a+b}2<\\sqrt {ab}$}{$\\sqrt {ab}<\\dfrac{2ab}{a+b}<\\dfrac{a+b}2$}{$\\dfrac{2ab}{a+b}<\\sqrt {ab}<\\dfrac{a+b}2$}{$\\sqrt {ab}<\\dfrac{a+b}2<\\dfrac{2ab}{a+b}$}",
"objs": [],
"tags": [
"第一单元"
@ -518419,7 +518419,8 @@
"usages": [],
"origin": "2025届高一校本作业必修第二章",
"edit": [
"20220901\t王伟叶\t伍杨超"
"20220901\t王伟叶\t伍杨超",
"20230925\t王伟叶"
],
"same": [
"005017"
@ -518453,7 +518454,7 @@
},
"020195": {
"id": "020195",
"content": "设$ab\\ne 0$, 利用基本不等式有如下证明:\\\\ \n$\\dfrac ba+\\dfrac ab=\\dfrac{b^2+a^2}{ab}\\ge \\dfrac{2ab}{ab}=2$.试判断这个证明过程是否正确. 若正确, 请说明每一步的依据; 若不正确, 请说明理由.",
"content": "设$ab\\ne 0$, 利用基本不等式有如下证明: $\\dfrac ba+\\dfrac ab=\\dfrac{b^2+a^2}{ab}\\ge \\dfrac{2ab}{ab}=2$.试判断这个证明过程是否正确. 若正确, 请说明每一步的依据; 若不正确, 请说明理由.",
"objs": [],
"tags": [
"第一单元"
@ -518465,7 +518466,8 @@
"usages": [],
"origin": "2025届高一校本作业必修第二章",
"edit": [
"20220901\t王伟叶\t伍杨超"
"20220901\t王伟叶\t伍杨超",
"20230925\t王伟叶"
],
"same": [
"007818"