|  | @@ -1998,7 +1998,13 @@ export default defineComponent({
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				|  |  |                : styles.rightColumnHide
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				|  |  |            ]}>
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				|  |  |            {rightList.map((item: any) => (
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				|  |  | -            <div class={styles.columnItemBox}>
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				|  |  | +            <div
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				|  |  | +              class={[
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				|  |  | +                styles.columnItemBox,
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				|  |  | +                item.id === 14 && data.coursewareType === 'PPT'
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				|  |  | +                  ? styles.hideBtn
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				|  |  | +                  : ''
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				|  |  | +              ]}>
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				|  |  |                <div
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				|  |  |                  class={[
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				|  |  |                    styles.columnItem,
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				|  | @@ -2007,9 +2013,6 @@ export default defineComponent({
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				|  |  |                    (item.id === 11 && !isUpArrow.value) ||
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				|  |  |                    (item.id === 12 && !isDownArrow.value)
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				|  |  |                      ? styles.itemDisabled
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				|  |  | -                    : '',
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				|  |  | -                  item.id === 14 && data.coursewareType === 'PPT'
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				|  |  | -                    ? styles.hideBtn
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				|  |  |                      : ''
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				|  |  |                  ]}
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				|  |  |                  onClick={() => operateRightBtn(item.id)}>
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				|  | @@ -2076,7 +2079,13 @@ export default defineComponent({
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				|  |  |                : styles.leftColumnHide
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				|  |  |            ]}>
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				|  |  |            {rightList.map((item: any) => (
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				|  |  | -            <div class={styles.columnItemBox}>
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				|  |  | +            <div
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				|  |  | +              class={[
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				|  |  | +                styles.columnItemBox,
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				|  |  | +                item.id === 14 && data.coursewareType === 'PPT'
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				|  |  | +                  ? styles.hideBtn
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				|  |  | +                  : ''
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				|  |  | +              ]}>
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				|  |  |                <div
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				|  |  |                  class={[
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				|  |  |                    styles.columnItem,
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				|  | @@ -2085,9 +2094,6 @@ export default defineComponent({
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				|  |  |                    (item.id === 11 && !isUpArrow.value) ||
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				|  |  |                    (item.id === 12 && !isDownArrow.value)
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				|  |  |                      ? styles.itemDisabled
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				|  |  | -                    : '',
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				|  |  | -                  item.id === 14 && data.coursewareType === 'PPT'
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				|  |  | -                    ? styles.hideBtn
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				|  |  |                      : ''
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				|  |  |                  ]}
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				|  |  |                  onClick={() => operateRightBtn(item.id)}>
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