{"id":28879,"date":"2025-11-28T11:28:59","date_gmt":"2025-11-28T04:28:59","guid":{"rendered":"https:\/\/xbookvn.com\/?post_type=lp_course&#038;p=28879"},"modified":"2026-01-30T11:03:17","modified_gmt":"2026-01-30T04:03:17","slug":"de-cuong-lop-9-hk1","status":"publish","type":"lp_course","link":"https:\/\/xbookvn.com\/es\/xbook\/de-cuong-lop-9-hk1\/","title":{"rendered":"xBook &#8211; NBK Rubik 9"},"content":{"rendered":"<section class=\"xbook9-wrapper\">\n<style>\n    .xbook9-wrapper {\n      font-family: system-ui, -apple-system, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n      line-height: 1.7;\n      max-width: 1000px;\n      margin: 0 auto;\n    }<\/p>\n<p>    :root {\n      --x9-accent: #ff7700;\n    }<\/p>\n<p>    \/* TAG highlight *\/\n    .x9-tag {\n      display: inline-block;\n      padding: 3px 10px;\n      border-radius: 999px;\n      background: var(--x9-accent);\n      font-size: 0.78rem;\n      font-weight: 600;\n      letter-spacing: 0.08em;\n      text-transform: uppercase;\n      margin-right: 6px;\n      white-space: nowrap;\n    }<\/p>\n<p>    .x9-tag-row {\n      margin-bottom: 6px;\n    }<\/p>\n<p>    header.xbook9-header h1 {\n      font-size: 1.8rem;\n      margin: 8px 0 4px;\n    }<\/p>\n<p>    header.xbook9-header > strong {\n      font-size: 0.98rem;\n      color: #374151;\n    }<\/p>\n<p>    h2.x9-title {\n      font-size: 1.1rem;\n      margin: 18px 0 8px;\n    }<\/p>\n<p>    h3.x9-subtitle {\n      font-size: 1rem;\n      margin: 12px 0 4px;\n    }<\/p>\n<p>    ul.x9-bullets {\n      padding-left: 1.1rem;\n      margin: 0 0 8px;\n    }<\/p>\n<p>    ul.x9-bullets li {\n      margin-bottom: 6px;\n    }<\/p>\n<p>    \/* B\u1ea3ng chung *\/\n    .x9-table-scroll {\n      width: 100%;\n      overflow-x: auto;\n      margin-bottom: 12px;\n    }<\/p>\n<p>    table.x9-table {\n      width: 100%;\n      border-collapse: collapse;\n      font-size: 0.9rem;\n    }<\/p>\n<p>    table.x9-table th,\n    table.x9-table td {\n      border: 1px solid #e5e7eb;\n      padding: 8px 10px;\n      vertical-align: top;\n      text-align: left;\n    }<\/p>\n<p>    table.x9-table th {\n      background: var(--x9-accent);\n      font-weight: 600;\n      white-space: nowrap;\n    }<\/p>\n<p>    table.x9-table tr:nth-child(even) td {\n      background: #f9fafb;\n    }<\/p>\n<p>    .x9-subject-name {\n      font-weight: 600;\n      margin-bottom: 2px;\n    }<\/p>\n<p>    .x9-subject-note {\n      font-size: 0.8rem;\n      color: #4b5563;\n    }<\/p>\n<p>    .x9-section-box {\n      margin-bottom: 18px;\n    }<\/p>\n<p>    .x9-benefits li strong {\n      color: #111827;\n    }<\/p>\n<p>    .x9-footer {\n      margin-top: 8px;\n      padding: 10px 12px;\n      border-radius: 8px;\n      background: #fff7f0;\n      border: 1px solid #fed7aa;\n      font-size: 0.93rem;\n    }<\/p>\n<p>    .x9-footer strong {\n      color: #b45309;\n    }\n  <\/style>\n<p>  <!-- PH\u1ea6N GI\u1edaI THI\u1ec6U --><\/p>\n<header class=\"xbook9-header x9-section-box\">\n<h1>Gu\u00eda de Repaso de 9.\u00ba Grado<\/h1>\n<p>    <strong>Aprender \u2013 Comprender \u2013 Pensar \u2013 Aplicar<\/strong><br \/>\n  <\/header>\n<div class=\"x9-section-box\">\n<p>\n      <strong>Gu\u00eda de Repaso de 9.\u00ba Grado<\/strong> es un conjunto integral de materiales did\u00e1cticos para los estudiantes del \u00faltimo curso, que les ayuda a consolidar completamente sus conocimientos<br \/>\n      antes de los ex\u00e1menes y la prueba de ingreso a 10.\u00ba grado. Lo especial de esta gu\u00eda radica en su sistema de<br \/>\n      simulaciones \u2013 ilustraciones \u2013 mapas mentales \u2013 videos \u2013 ejercicios interactivos integrados directamente en la plataforma<br \/>\n      <strong>TUTBook\u2122 | xBook.<\/strong>.<br \/>\n      Al combinar libros impresos de alta calidad con recursos digitales din\u00e1micos, los estudiantes no solo memorizan el contenido,<br \/>\n      sino que tambi\u00e9n comprenden profundamente \u2013 lo dominan \u2013 y lo aplican con flexibilidad.\n    <\/p>\n<\/p><\/div>\n<p>  <!-- \u0110I\u1ec2M N\u1ed4I B\u1eacT --><\/p>\n<div class=\"x9-section-box\">\n<h2 class=\"x9-title\">Puntos destacados<\/h2>\n<ul class=\"x9-bullets\">\n<li>\n        <span class=\"x9-tag\">Visualizaci\u00f3n<\/span><br \/>\n        Cada cap\u00edtulo y secci\u00f3n se resume mediante un sistema de mapas mentales, puntos l\u00f3gicos y tablas comparativas, lo que permite a los estudiantes comprender r\u00e1pidamente todo el contenido.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">QR \u2013 Video \u2013 Quiz<\/span><br \/>\n        Escanea el c\u00f3digo QR para abrir videos explicativos, ilustraciones, tarjetas educativas, ejercicios de muestra y pruebas r\u00e1pidas justo despu\u00e9s de la secci\u00f3n te\u00f3rica.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">Interacci\u00f3n por asignatura<\/span><br \/>\n        Arrastrar \u2013 soltar \u2013 seleccionar \u2013 ajustar par\u00e1metros \u2013 ver ejemplos ilustrativos\u2026 est\u00e1n dise\u00f1ados especialmente para cada asignatura.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">Autoaprendizaje<\/span><br \/>\n        C\u1ea5u tr\u00fac t\u1eebng b\u00e0i, t\u1eebng ch\u01b0\u01a1ng r\u00f5 r\u00e0ng, d\u1ec5 theo d\u00f5i, ph\u00f9 h\u1ee3p cho h\u1ecdc sinh t\u1ef1 h\u1ecdc v\u00e0 t\u1ef1 \u00f4n t\u1eadp.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf<\/span><br \/>\n        Li\u00ean h\u1ec7 \u0111\u1eddi s\u1ed1ng, khoa h\u1ecdc, x\u00e3 h\u1ed9i \u0111\u1ec3 h\u1ecdc sinh hi\u1ec3u \u201cv\u00ec sao ph\u1ea3i h\u1ecdc\u201d, kh\u00f4ng ch\u1ec9 h\u1ecdc thu\u1ed9c \u0111\u1ec3 l\u00e0m b\u00e0i.\n      <\/li>\n<\/ul><\/div>\n<p>  <!-- AI N\u00caN S\u1eec D\u1ee4NG --><\/p>\n<div class=\"x9-section-box\">\n<h2 class=\"x9-title\">\u00bfQui\u00e9n deber\u00eda usarlo?<\/h2>\n<div class=\"x9-table-scroll\">\n<table class=\"x9-table\">\n<thead>\n<tr>\n<th style=\"width: 200px;\">P\u00fablico objetivo<\/th>\n<th>Beneficios<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n              <span class=\"x9-tag\">H\u1ecdc sinh l\u1edbp 9<\/span>\n            <\/td>\n<td>N\u1eafm nhanh ki\u1ebfn th\u1ee9c c\u1ed1t l\u00f5i, hi\u1ec3u b\u1ea3n ch\u1ea5t, s\u1eb5n s\u00e0ng cho thi h\u1ecdc k\u1ef3 &amp; thi v\u00e0o 10.<\/td>\n<\/tr>\n<tr>\n<td>\n              <span class=\"x9-tag\">Luy\u1ec7n thi<\/span><br \/>\n              Estudiantes en preparaci\u00f3n para ex\u00e1menes\n            <\/td>\n<td>Ti\u1ebfp c\u1eadn h\u1ec7 th\u1ed1ng c\u00e2u h\u1ecfi v\u00e0 m\u00f4 ph\u1ecfng gi\u00fap x\u1eed l\u00fd \u0111\u1ec1 l\u1ea1, t\u0103ng kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch.<\/td>\n<\/tr>\n<tr>\n<td>\n              <span class=\"x9-tag\">Profesores<\/span><\/p>\n<\/td>\n<td>C\u00f3 b\u1ed9 t\u00e0i li\u1ec7u chu\u1ea9n \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn \u2013 \u00f4n t\u1eadp \u2013 ki\u1ec3m tra nhanh tr\u00ean l\u1edbp v\u00e0 k\u1ebft n\u1ed1i v\u1edbi h\u1ecdc li\u1ec7u s\u1ed1.<\/td>\n<\/tr>\n<tr>\n<td>\n              <span class=\"x9-tag\">Padres<\/span><\/p>\n<\/td>\n<td>Theo d\u00f5i ti\u1ebfn \u0111\u1ed9 \u00f4n t\u1eadp v\u00e0 h\u1ed7 tr\u1ee3 con h\u1ecdc ch\u1ee7 \u0111\u1ed9ng, hi\u1ec7u qu\u1ea3.<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/p><\/div>\n<p>  <!-- N\u1ed8I DUNG THEO M\u00d4N (B\u1ea2NG) --><\/p>\n<div class=\"x9-section-box\">\n<h2 class=\"x9-title\">N\u1ed9i dung \u0111\u1ec1 c\u01b0\u01a1ng theo m\u00f4n<\/h2>\n<p>\n      D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ed5ng quan c\u00e1c m\u00f4n. Tr\u00ean n\u1ec1n t\u1ea3ng xBook, m\u1ed7i ph\u1ea7n s\u1ebd \u0111i k\u00e8m QR m\u1edf video, quiz, flashcard ho\u1eb7c m\u00f4 ph\u1ecfng t\u01b0\u01a1ng t\u00e1c.\n    <\/p>\n<div class=\"x9-table-scroll\">\n<table class=\"x9-table\">\n<thead>\n<tr>\n<th style=\"width: 190px;\">M\u00f4n h\u1ecdc<\/th>\n<th>N\u1ed9i dung ch\u00ednh<\/th>\n<th style=\"width: 260px;\">H\u1ecdc li\u1ec7u s\u1ed1 \/ Ghi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n          <!-- To\u00e1n 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">To\u00e1n 9<\/div>\n<div class=\"x9-subject-note\">\u0110\u1ea1i s\u1ed1 &amp; H\u00ecnh h\u1ecdc<\/div>\n<\/td>\n<td>\n              C\u0103n b\u1eadc hai \u2013 h\u1ec7 s\u1ed1 \u2013 bi\u1ebfn \u0111\u1ed5i c\u0103n th\u1ee9c; h\u00e0m s\u1ed1 b\u1eadc nh\u1ea5t \u2013 \u0111\u1ed3 th\u1ecb \u2013 h\u1ec7 s\u1ed1 g\u00f3c;<br \/>\n              h\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh \u2013 b\u00e0i to\u00e1n th\u1ef1c t\u1ebf; \u0111\u01b0\u1eddng tr\u00f2n \u2013 ti\u1ebfp tuy\u1ebfn \u2013 g\u00f3c \u2013 d\u00e2y;<br \/>\n              di\u1ec7n t\u00edch \u2013 tam gi\u00e1c \u2013 c\u00e1c h\u1ec7 th\u1ee9c h\u00ecnh h\u1ecdc.\n            <\/td>\n<td>\n              M\u00f4 ph\u1ecfng h\u00ecnh h\u1ecdc, h\u1ec7 th\u1ed1ng m\u00f4 ph\u1ecfng tr\u1ef1c quan, \u0111\u1eb7c bi\u1ec7t cho ph\u1ea7n h\u00ecnh h\u1ecdc.\n            <\/td>\n<\/tr>\n<p>          <!-- Ng\u1eef v\u0103n 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">Ng\u1eef v\u0103n 9<\/div>\n<div class=\"x9-subject-note\">V\u0103n b\u1ea3n &amp; Ti\u1ebfng Vi\u1ec7t<\/div>\n<\/td>\n<td>\n              T\u00f3m t\u1eaft t\u00e1c ph\u1ea9m tr\u1ecdng t\u00e2m; s\u01a1 \u0111\u1ed3 m\u1ea1ng l\u01b0\u1edbi nh\u00e2n v\u1eadt; ngh\u1ec7 thu\u1eadt \u2013 th\u00f4ng \u0111i\u1ec7p \u2013 ch\u1ee7 \u0111\u1ec1 ch\u00ednh;<br \/>\n              Ti\u1ebfng Vi\u1ec7t: c\u00e2u gh\u00e9p, c\u00e2u ph\u1ee9c, bi\u1ec7n ph\u00e1p tu t\u1eeb; ngh\u1ecb lu\u1eadn v\u1edbi d\u00e0n \u00fd m\u1eabu v\u00e0 v\u00ed d\u1ee5 chu\u1ea9n.\n            <\/td>\n<td>\n              Flashcard t\u00e1c ph\u1ea9m, video ph\u00e2n t\u00edch, phi\u1ebfu luy\u1ec7n t\u1eadp nhanh.\n            <\/td>\n<\/tr>\n<p>          <!-- Ti\u1ebfng Anh 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">Ti\u1ebfng Anh 9<\/div>\n<div class=\"x9-subject-note\">Ng\u1eef ph\u00e1p &amp; T\u1eeb v\u1ef1ng<\/div>\n<\/td>\n<td>\n              Th\u00ec \u0111\u1ed9ng t\u1eeb; c\u00e2u \u0111i\u1ec1u ki\u1ec7n; c\u00e2u b\u1ecb \u0111\u1ed9ng; m\u1ec7nh \u0111\u1ec1 quan h\u1ec7; t\u1eeb v\u1ef1ng ch\u1ee7 \u0111\u1ec1 quen thu\u1ed9c &amp; n\u00e2ng cao;<br \/>\n              b\u00e0i \u0111\u1ecdc hi\u1ec3u v\u00e0 k\u1ef9 n\u0103ng l\u00e0m b\u00e0i thi.\n            <\/td>\n<td>\n              B\u00e0i nghe \u2013 n\u00f3i \u2013 quiz t\u01b0\u01a1ng t\u00e1c, luy\u1ec7n ph\u00e1t \u00e2m v\u1edbi AI.\n            <\/td>\n<\/tr>\n<p>          <!-- V\u1eadt l\u00fd 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">V\u1eadt l\u00fd 9<\/div>\n<div class=\"x9-subject-note\">\u0110i\u1ec7n h\u1ecdc &amp; Quang h\u1ecdc<\/div>\n<\/td>\n<td>\n              \u0110\u1ecbnh lu\u1eadt \u00d4m \u2013 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n; \u0111i\u1ec7n tr\u1edf t\u01b0\u01a1ng \u0111\u01b0\u01a1ng; \u1ea3nh t\u1ea1o b\u1edfi th\u1ea5u k\u00ednh;<br \/>\n              \u0111\u1ecbnh lu\u1eadt truy\u1ec1n th\u1eb3ng \u00e1nh s\u00e1ng.\n            <\/td>\n<td>\n              M\u00f4 ph\u1ecfng m\u1ea1ch \u0111i\u1ec7n; k\u00e9o \u2013 th\u1ea3 th\u1ea5u k\u00ednh v\u00e0 v\u1eadt \u0111\u1ec3 quan s\u00e1t \u1ea3nh.\n            <\/td>\n<\/tr>\n<p>          <!-- H\u00f3a h\u1ecdc 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">H\u00f3a h\u1ecdc 9<\/div>\n<div class=\"x9-subject-note\">Ph\u1ea3n \u1ee9ng \u2013 Oxit \u2013 Baz\u01a1 \u2013 Mu\u1ed1i<\/div>\n<\/td>\n<td>\n              B\u1ea3ng t\u1ed5ng h\u1ee3p t\u00ednh ch\u1ea5t ho\u00e1 h\u1ecdc; ph\u00e2n lo\u1ea1i ch\u1ea5t; d\u1ef1 \u0111o\u00e1n s\u1ea3n ph\u1ea9m;<br \/>\n              ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh nhanh.\n            <\/td>\n<td>\n              Th\u00ed nghi\u1ec7m \u1ea3o, ki\u1ec3m tra ki\u1ebfn th\u1ee9c b\u1eb1ng quiz.\n            <\/td>\n<\/tr>\n<p>          <!-- Sinh h\u1ecdc 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">Sinh h\u1ecdc 9<\/div>\n<div class=\"x9-subject-note\">Di truy\u1ec1n &amp; Sinh th\u00e1i<\/div>\n<\/td>\n<td>\n              ADN \u2013 NST \u2013 c\u01a1 ch\u1ebf di truy\u1ec1n; lai ph\u00e2n t\u00edch \u2013 lai thu\u1eadn \u2013 lai ngh\u1ecbch;<br \/>\n              h\u1ec7 sinh th\u00e1i \u2013 c\u00e2n b\u1eb1ng sinh h\u1ecdc.\n            <\/td>\n<td>\n              M\u00f4 ph\u1ecfng gen \u2013 lai, b\u1ea3ng Punnett t\u01b0\u01a1ng t\u00e1c.\n            <\/td>\n<\/tr>\n<p>          <!-- \u0110\u1ecba l\u00fd 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">\u0110\u1ecba l\u00fd 9<\/div>\n<div class=\"x9-subject-note\">Kinh t\u1ebf &amp; X\u00e3 h\u1ed9i Vi\u1ec7t Nam<\/div>\n<\/td>\n<td>\n              C\u00e1c v\u00f9ng kinh t\u1ebf; s\u01a1 \u0111\u1ed3 s\u1ea3n xu\u1ea5t \u2013 xu\u1ea5t kh\u1ea9u \u2013 d\u00e2n s\u1ed1.\n            <\/td>\n<td>\n              B\u1ea3n \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c v\u00e0 bi\u1ec3u \u0111\u1ed3 tr\u1ef1c quan.\n            <\/td>\n<\/tr>\n<p>          <!-- L\u1ecbch s\u1eed 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">L\u1ecbch s\u1eed 9<\/div>\n<div class=\"x9-subject-note\">Vi\u1ec7t Nam t\u1eeb 1919 \u0111\u1ebfn nay<\/div>\n<\/td>\n<td>\n              Giai \u0111o\u1ea1n tr\u01b0\u1edbc C\u00e1ch m\u1ea1ng Th\u00e1ng T\u00e1m; kh\u00e1ng chi\u1ebfn ch\u1ed1ng Ph\u00e1p \u2013 M\u1ef9;<br \/>\n              x\u00e2y d\u1ef1ng \u0111\u1ea5t n\u01b0\u1edbc sau 1975.\n            <\/td>\n<td>\n              Timeline s\u1ef1 ki\u1ec7n, b\u1ea3n \u0111\u1ed3 chi\u1ebfn d\u1ecbch, h\u00ecnh t\u01b0 li\u1ec7u.\n            <\/td>\n<\/tr>\n<p>          <!-- GDCD 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">GDCD 9<\/div>\n<div class=\"x9-subject-note\">Gi\u00e1o d\u1ee5c c\u00f4ng d\u00e2n<\/div>\n<\/td>\n<td>\n              Quy\u1ec1n &amp; ngh\u0129a v\u1ee5 c\u00f4ng d\u00e2n; ph\u00e1p lu\u1eadt v\u00e0 \u0111\u1eddi s\u1ed1ng; c\u00e1c t\u00ecnh hu\u1ed1ng ph\u00e1p l\u00fd th\u01b0\u1eddng g\u1eb7p.\n            <\/td>\n<td>\n              B\u00e0i t\u1eadp t\u00ecnh hu\u1ed1ng, ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0111\u00fang v\u00e0 ph\u00e2n t\u00edch l\u00fd do.\n            <\/td>\n<\/tr>\n<p>          <!-- C\u00f4ng ngh\u1ec7 & Tin 9 --><\/p>\n<tr>\n<td>\n<div class=\"x9-subject-name\">C\u00f4ng ngh\u1ec7 &amp; Tin 9<\/div>\n<div class=\"x9-subject-note\">C\u00f4ng ngh\u1ec7 &amp; Tin h\u1ecdc<\/div>\n<\/td>\n<td>\n              Quy tr\u00ecnh c\u00f4ng ngh\u1ec7; \u0111i\u1ec7n t\u1eed c\u01a1 b\u1ea3n; l\u1eadp tr\u00ecnh c\u01a1 b\u1ea3n.\n            <\/td>\n<td>\n              M\u00f4 ph\u1ecfng m\u1ea1ch \u0111i\u1ec7n v\u00e0 b\u00e0i l\u1eadp tr\u00ecnh th\u1ef1c h\u00e0nh tr\u1ef1c ti\u1ebfp.\n            <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/p><\/div>\n<p>  <!-- L\u1ee2I \u00cdCH + K\u1ebeT LU\u1eacN --><\/p>\n<div class=\"x9-section-box\">\n<h2 class=\"x9-title\">L\u1ee3i \u00edch c\u1ee7a \u0110\u1ec1 C\u01b0\u01a1ng xBook<\/h2>\n<ul class=\"x9-bullets x9-benefits\">\n<li>\n        <span class=\"x9-tag\">\u0110\u1ea7y \u0111\u1ee7 ch\u01b0\u01a1ng tr\u00ecnh<\/span><br \/>\n        Bao tr\u00f9m to\u00e0n b\u1ed9 ch\u01b0\u01a1ng tr\u00ecnh l\u1edbp 9.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">D\u1ec5 h\u1ecdc \u2013 D\u1ec5 nh\u1edb<\/span><br \/>\n        \u0110\u1ecbnh d\u1ea1ng d\u1ec5 h\u1ecdc \u2013 d\u1ec5 \u00f4n \u2013 d\u1ec5 nh\u1edb, thu\u1eadn ti\u1ec7n tra c\u1ee9u.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">QR t\u01b0\u01a1ng t\u00e1c<\/span><br \/>\n        M\u1ed7i ph\u1ea7n c\u00f3 QR \u0111\u1ec3 m\u1edf ngay b\u00e0i t\u01b0\u01a1ng t\u00e1c: video, quiz, flashcard, m\u00f4 ph\u1ecfng.\n      <\/li>\n<li>\n        <span class=\"x9-tag\">Gi\u1ea3m \u00e1p l\u1ef1c<\/span><br \/>\n        Gi\u1ea3m \u00e1p l\u1ef1c \u00f4n thi, gi\u00fap h\u1ecdc sinh c\u00f3 l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng v\u00e0 t\u1ef1 tin h\u01a1n.\n      <\/li>\n<\/ul>\n<div class=\"x9-footer\">\n      <strong>\u0110\u1ec1 C\u01b0\u01a1ng \u00d4n T\u1eadp xBook L\u1edbp 9<\/strong> l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u cho n\u0103m h\u1ecdc cu\u1ed1i c\u1ea5p:<br \/>\n      nhanh, r\u00f5, d\u1ec5 hi\u1ec3u, gi\u00e0u t\u01b0\u01a1ng t\u00e1c. H\u1ecdc sinh n\u1eafm ch\u1eafc ki\u1ebfn th\u1ee9c c\u1ed1t l\u00f5i v\u00e0 t\u1ef1 tin tr\u01b0\u1edbc m\u1ecdi k\u1ef3 thi.\n    <\/div>\n<\/p><\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>XBook \u2013 NBK Rubik 9. Gu\u00eda de Repaso del Examen Semestral \u2013 Grado 9. 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