修改21764题面
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@ -591891,7 +591891,7 @@
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"021764": {
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"id": "021764",
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"content": "已知$|\\overrightarrow {a}|=4$, $|\\overrightarrow {b}|=5$, $|2 \\overrightarrow{a}-3 \\overrightarrow {b}|=7$, 求$|2 \\overrightarrow {b}-\\overrightarrow{3 a}|$的值.",
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"content": "已知$|\\overrightarrow {a}|=4$, $|\\overrightarrow {b}|=5$, $|2 \\overrightarrow{a}-3 \\overrightarrow {b}|=7$, 求$|2 \\overrightarrow {b}-3\\overrightarrow{ a}|$的值.",
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"objs": [],
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"tags": [
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"第五单元"
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@ -591913,6 +591913,7 @@
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"origin": "2025届高一下校本作业",
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"edit": [
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"20230209\t王伟叶",
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"20240216\t王伟叶",
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"20240216\t王伟叶"
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],
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"same": [],
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