{"type":"product","schema_version":"1.0","item_id":"100459061990","canonical_url":"https://tw.bid.yahoo.com/item/100459061990","title":"◎慶誠書屋◎九章--巧添輔助線 (中學資優生適用)","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-07-07T18:08:28.923Z","current_price":90,"original_price":null,"stock_status":"out_of_stock","available_quantity":1,"sold_quantity":96,"seller":{"id":"Y9067285789","name":"慶誠書屋雅虎賣場","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/22f16758-b0dd-41bd-a78b-d57b6e9aed5f.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/76b1c3e6-f0cc-4d01-964c-c441fef5c61d.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null}],"description":"解幾何題的難點之一是如何添加輔助線。若輔助線引得巧妙，則已知條件與結論的關係一目了然，難題亦迎刃而解；若引得不適當，不是事半功倍走彎路，就是徒勞而無功。本書總結了求解幾何題時添加輔助線的一般規律，並通過豐富的實例講述了如何添加輔助線的思路，使讀者可以舉一反三，提高解題能力。每章後面附有一定數量的練習題(書末有答案可供參考)。 本書通俗易懂、切合初學者的要求，習題類型齊全，有助於增進解幾何題的能力。","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092079029","category_name":"國小/國中用書","breadcrumb":[{"id":"3994318","name":"圖書/影音/文具","url":"/tw/%E5%9C%96%E6%9B%B8-%E5%BD%B1%E9%9F%B3-%E6%96%87%E5%85%B7-3994318-category.html"},{"id":"2092064185","name":"圖書與雜誌","url":"/tw/%E5%9C%96%E6%9B%B8%E8%88%87%E9%9B%9C%E8%AA%8C-2092064185-category.html"},{"id":"2092073405","name":"教育/考試用書","url":"/tw/%E6%95%99%E8%82%B2-%E8%80%83%E8%A9%A6%E7%94%A8%E6%9B%B8-2092073405-category.html"},{"id":"2092079028","name":"參考書","url":"/tw/%E5%8F%83%E8%80%83%E6%9B%B8-2092079028-category.html"},{"id":"2092079029","name":"國小/國中用書","url":"/tw/%E5%9C%8B%E5%B0%8F-%E5%9C%8B%E4%B8%AD%E7%94%A8%E6%9B%B8-2092079029-category.html"}],"view_count":4,"watch_count":45}