|  | @@ -43,7 +43,7 @@
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				|  |  |              inactive-text="生词模式"
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				|  |  |            /> -->
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				|  |  |          </div>
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				|  |  | -        <template v-if="category == 'oc' || !category">
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				|  |  | +        <template v-if="category == 'OC' || !category">
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				|  |  |            <Preview
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				|  |  |              v-if="chapterId && context"
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				|  |  |              ref="previewAnswer"
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				|  | @@ -181,7 +181,7 @@ export default {
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				|  |  |          this.themeColor = res.book_theme_color;
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				|  |  |          if (res.content) {
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				|  |  |            const _this = this;
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				|  |  | -          if (!this.category || this.category == "oc") {
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				|  |  | +          if (!this.category || this.category == "OC") {
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				|  |  |              _this.context = {
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				|  |  |                id: _this.chapterId,
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				|  |  |                ui_type: JSON.parse(res.content).question
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