修改两处双基梳理中的错误
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@ -1717,14 +1717,14 @@
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"objs": [
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"K0302001B"
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],
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"content": "$1^{\\circ}=$\\blank{50}弧度, $1$ 弧度 $=$\\blank{50}.\n\\begin{center}\n\\begin{tabular}{|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|}\n\\hline 角度 & $0^{\\circ}$ & $30^{\\circ}$ & $45^{\\circ}$ & $60^{\\circ}$ & & $135^{\\circ}$ & $180^{\\circ}$ & $270^{\\circ}$ & $360^{\\circ}$ \\\\\n\\hline 弧度 & & & & & $\\dfrac{\\pi}{2}$ & $\\dfrac{2 \\pi}{3}$ & $\\dfrac{5 \\pi}{6}$ & & \\\\\n\\hline\n\\end{tabular}\n\\end{center}"
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"content": "$1^{\\circ}=$\\blank{50}弧度, $1$ 弧度 $=$\\blank{50}.\n\\begin{center}\n\\begin{tabular}{|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|p{0.05\\textwidth}<{\\centering}|}\n\\hline 角度 & $0^{\\circ}$ & $30^{\\circ}$ & $45^{\\circ}$ & $60^{\\circ}$ & & & $135^{\\circ}$ & & $180^{\\circ}$ & $270^{\\circ}$ & $360^{\\circ}$ \\\\\n\\hline 弧度 & & & & & $\\dfrac{\\pi}{2}$ & $\\dfrac{2 \\pi}{3}$ & & $\\dfrac{5 \\pi}{6}$ & & & \\\\\n\\hline\n\\end{tabular}\n\\end{center}"
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},
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"B00238": {
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"lesson": "K0302",
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"objs": [
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"K0302002B"
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],
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"content": "设扇形的半径为 $r$, 孤长为 $l$, 圆心角为 $\\alpha$($0<\\alpha<2 \\pi$), 则扇形的弧长 $l=$\\blank{50}, 扇形的面积 $S=$\\blank{50}."
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"content": "设扇形的半径为 $r$, 弧长为 $l$, 圆心角为 $\\alpha$($0<\\alpha<2 \\pi$), 则扇形的弧长 $l=$\\blank{50}, 扇形的面积 $S=$\\blank{50}."
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},
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"B00239": {
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"lesson": "K0303",
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