{"id":5564,"date":"2026-01-03T22:57:40","date_gmt":"2026-01-03T14:57:40","guid":{"rendered":"http:\/\/jhwk.online\/?p=5564"},"modified":"2026-01-05T11:35:15","modified_gmt":"2026-01-05T03:35:15","slug":"%e4%b8%89%e8%a7%92%e5%87%bd%e6%95%b0%e9%a2%984-2-2-2-2-3","status":"publish","type":"post","link":"http:\/\/jhwk.online\/?p=5564","title":{"rendered":"\u4e09\u89d2\u51fd\u6570\u98987"},"content":{"rendered":"\n<div class=\"wp-block-stackable-subtitle stk-block-subtitle stk-block stk-8afe3d6\" data-block-id=\"8afe3d6\"><style>.stk-8afe3d6 .stk-block-subtitle__text{color:#0693e3 !important;}<\/style><p class=\"stk-block-subtitle__text stk-subtitle has-text-color\">\u672c\u9898\u75312023\u7ea725\u73ed\u97e9\u4e30\u7fbd\u8bb2\u89e3\uff01<\/p><\/div>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"842\" style=\"aspect-ratio: 1280 \/ 842;\" width=\"1280\" controls src=\"http:\/\/jhwk.online\/wp-content\/uploads\/2026\/01\/\u51fd\u6570\u53ca\u5176\u6027\u8d282.mp4\"><\/video><\/figure>\n\n\n\n<p>[ratemypost]<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background is-style-wide\"\/>\n\n\n\n<h5 class=\"wp-block-heading has-vivid-cyan-blue-color has-text-color has-link-color wp-elements-8a052dbd5caa870510f1e594e9e095cf\">\u9898\u76ee\u5c55\u793a\u2014\u2014\u5148\u63a2\u7a76\u3001\u518d\u542c\u8bb2<\/h5>\n\n\n\n(\u591a\u9009\u9898) \u5728\u659c\u4e09\u89d2\u5f62 \\( ABC \\) \u4e2d\uff0c\\( A \\)\u3001\\( B \\)\u3001\\( C \\) \u5bf9\u5e94\u8fb9\u5206\u522b\u4e3a \\( a \\)\u3001\\( b \\)\u3001\\( c \\)\uff0c\\( \\sin A = \\cos B \\)\uff0c\u5219( )<p>\n<p>A. \\( \\triangle ABC \\) \u4e3a\u9510\u89d2\u4e09\u89d2\u5f62\n<p>B. \u82e5 \\( a=1 \\)\uff0c\u5219 \\( b=\\tan B \\)\n<p>C. \\( 2\\tan B + \\tan C \\) \u6700\u5c0f\u503c\u4e3a \\( \\displaystyle\\frac{5\\sqrt{3}}{3} \\)\n<p>D. \\( 1 < \\cos A + \\cos B + \\cos C \\leq \\displaystyle\\frac{5}{4} \\)\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color has-medium-font-size wp-elements-8366a06008302950c0f8fd2d6d694915\" style=\"color:#1e4b69;background:linear-gradient(0deg,rgb(230,242,255) 0%,rgb(230,242,255) 16%,rgb(92,175,230) 100%)\">\u89e3\u9898\u63a2\u7a76\u2014\u2014\u70b9\u51fb\u76f4\u8fbe<\/h4>\n\n\n\n<style>\n  .video-jump-btn {\n    cursor: pointer;\n    text-align: left;\n    background-color: #e6f2ff; 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