修改基础知识中一处空格
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@ -830,7 +830,7 @@
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"K0405002X",
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"K0405003X"
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],
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"content": "以$a$为首项,$q$为公比的等比数列, 其前$n$项和为$S_n$, 当公比\\blank{90}时, 有$\\displaystyle\\sum_{i=1}^{+\\infty}aq^{i-1}=\\displaystyle\\lim_{n \\to +\\infty}S_n=$\\blank{90}."
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"content": "以$a$为首项, $q$为公比的等比数列, 其前$n$项和为$S_n$, 当公比\\blank{90}时, 有$\\displaystyle\\sum_{i=1}^{+\\infty}aq^{i-1}=\\displaystyle\\lim_{n \\to +\\infty}S_n=$\\blank{90}."
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},
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"B00117": {
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"lesson": "K0406",
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