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{"segment":[{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc b\u00e0i sau v\u00e0 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi b\u00ean d\u01b0\u1edbi:","temp":"multiple_choice","correct":[["4"]],"list":[{"point":10,"img":"","ques":"<b>Nh\u1eefng chi\u1ebfc chu\u00f4ng reo<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Gi\u1eefa c\u00e1nh \u0111\u1ed3ng, c\u00f3 m\u1ed9t t\u00fap l\u1ec1u b\u1eb1ng ph\u00ean r\u1ea1 m\u00e0u v\u00e0ng x\u1ec9n, xung quanh x\u1ebfp \u0111\u1ea7y nh\u1eefng h\u00e0ng g\u1ea1ch m\u1edbi \u0111\u00f3ng. \u0110\u00f3 l\u00e0 t\u00fap l\u1ec1u c\u1ee7a gia \u0111\u00ecnh b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u00f4i r\u1ea5t th\u00edch ra l\u00f2 g\u1ea1ch ch\u01a1i \u00fa tim v\u1edbi th\u1eb1ng Cu v\u00e0 c\u00e1i C\u00fan, con b\u00e1c. M\u1ed9t chi\u1ec1u gi\u00e1p T\u1ebft, g\u1ea1ch v\u00e0o l\u00f2, s\u1eafp nh\u00f3m l\u1eeda, th\u1eb1ng Cu r\u1ee7 t\u00f4i n\u1eb7n nh\u1eefng chi\u1ebfc chu\u00f4ng con to h\u01a1n qu\u1ea3 t\u00e1o, c\u00f3 c\u00e1i n\u00fam \u0111\u1ebb x\u00e2u d\u00e2y, l\u1ea1i th\u00eam m\u1ed9t vi\u00ean bi nh\u1ecf \u1edf trong \u0111\u1ec3 t\u1ea1o ra ti\u1ebfng k\u00eau. B\u00e1c th\u1ee3 g\u1ea1ch \u0111\u1ec3 h\u1ed9 c\u00e1i kho b\u00e1u \u0111\u00f3 v\u00e0o m\u1ed9t g\u00f3c l\u00f2 nung. Khi c\u00e1c \u0111\u1ed3 \u0111\u1ea5t nung \u0111\u00e3 ngu\u1ed9i, b\u00e1c l\u1ea5y hai s\u1ee3i x\u00e2u nh\u1eefng chi\u1ebfc chu\u00f4ng th\u00e0nh hai c\u00e1i v\u00f2ng: m\u1ed9t v\u00f2ng treo tr\u01b0\u1edbc c\u1eeda nh\u00e0 b\u00e1c cho Cu v\u00e0 C\u00fan ch\u01a1i, v\u00f2ng kia t\u1eb7ng t\u00f4i \u0111em v\u1ec1 treo l\u00ean c\u00e2y n\u00eau tr\u01b0\u1edbc s\u00e2n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ebft \u1ea5y, nh\u1eefng chi\u1ebfc chu\u00f4ng \u0111\u1ea5t nung k\u00eau lanh canh tr\u00ean c\u00e2y n\u00eau l\u00e0m s\u00e2n nh\u00e0 t\u00f4i \u1ea5m \u00e1p v\u00e0 n\u00e1o n\u1ee9c h\u1eb3n l\u00ean.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Ng\u00f4 Qu\u00e2n Mi\u1ec7n)<\/span><br\/><br\/><b>T\u00fap l\u1ec1u c\u1ee7a gia \u0111\u00ecnh b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch nh\u01b0 th\u1ebf n\u00e0o ?<\/b>","hint":"\u0110\u1ecdc k\u0129 \u0111o\u1ea1n sau:<br\/><span class='basic_left textindent'>Gi\u1eefa c\u00e1nh \u0111\u1ed3ng, c\u00f3 m\u1ed9t <b>t\u00fap l\u1ec1u b\u1eb1ng ph\u00ean r\u1ea1 m\u00e0u v\u00e0ng x\u1ec9n, xung quanh x\u1ebfp \u0111\u1ea7y nh\u1eefng h\u00e0ng g\u1ea1ch m\u1edbi \u0111\u00f3ng<\/b>. \u0110\u00f3 l\u00e0 t\u00fap l\u1ec1u c\u1ee7a gia \u0111\u00ecnh b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch.","column":2,"select":["L\u00e0m b\u1eb1ng ph\u00ean r\u1ea1","C\u00f3 m\u00e0u v\u00e0ng x\u1ec9n","Xung quanh x\u1ebfp \u0111\u1ea7y nh\u1eefng h\u00e0ng g\u1ea1ch m\u1edbi \u0111\u00f3ng","T\u1ea5t c\u1ea3 c\u00e1c \u0111\u00e1p \u00e1n tr\u00ean"],"explain":"\u0110\u1ecdc k\u0129 \u0111o\u1ea1n sau:<br\/><span class='basic_left textindent'>Gi\u1eefa c\u00e1nh \u0111\u1ed3ng, c\u00f3 m\u1ed9t <b>t\u00fap l\u1ec1u b\u1eb1ng ph\u00ean r\u1ea1 m\u00e0u v\u00e0ng x\u1ec9n, xung quanh x\u1ebfp \u0111\u1ea7y nh\u1eefng h\u00e0ng g\u1ea1ch m\u1edbi \u0111\u00f3ng<\/b>. \u0110\u00f3 l\u00e0 t\u00fap l\u1ec1u c\u1ee7a gia \u0111\u00ecnh b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch.<br\/>Ta th\u1ea5y t\u1ea5t c\u1ea3 c\u00e1c \u0111\u00e1p \u00e1n \u0111\u1ec1u \u0111\u00fang."}]}],"id_ques":291},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc b\u00e0i sau v\u00e0 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi b\u00ean d\u01b0\u1edbi:","temp":"multiple_choice","correct":[["1"]],"list":[{"point":10,"img":"","ques":"<b>Nh\u1eefng chi\u1ebfc chu\u00f4ng reo<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Gi\u1eefa c\u00e1nh \u0111\u1ed3ng, c\u00f3 m\u1ed9t t\u00fap l\u1ec1u b\u1eb1ng ph\u00ean r\u1ea1 m\u00e0u v\u00e0ng x\u1ec9n, xung quanh x\u1ebfp \u0111\u1ea7y nh\u1eefng h\u00e0ng g\u1ea1ch m\u1edbi \u0111\u00f3ng. \u0110\u00f3 l\u00e0 t\u00fap l\u1ec1u c\u1ee7a gia \u0111\u00ecnh b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u00f4i r\u1ea5t th\u00edch ra l\u00f2 g\u1ea1ch ch\u01a1i \u00fa tim v\u1edbi th\u1eb1ng Cu v\u00e0 c\u00e1i C\u00fan, con b\u00e1c. M\u1ed9t chi\u1ec1u gi\u00e1p T\u1ebft, g\u1ea1ch v\u00e0o l\u00f2, s\u1eafp nh\u00f3m l\u1eeda, th\u1eb1ng Cu r\u1ee7 t\u00f4i n\u1eb7n nh\u1eefng chi\u1ebfc chu\u00f4ng con to h\u01a1n qu\u1ea3 t\u00e1o, c\u00f3 c\u00e1i n\u00fam \u0111\u1ebb x\u00e2u d\u00e2y, l\u1ea1i th\u00eam m\u1ed9t vi\u00ean bi nh\u1ecf \u1edf trong \u0111\u1ec3 t\u1ea1o ra ti\u1ebfng k\u00eau. B\u00e1c th\u1ee3 g\u1ea1ch \u0111\u1ec3 h\u1ed9 c\u00e1i kho b\u00e1u \u0111\u00f3 v\u00e0o m\u1ed9t g\u00f3c l\u00f2 nung. Khi c\u00e1c \u0111\u1ed3 \u0111\u1ea5t nung \u0111\u00e3 ngu\u1ed9i, b\u00e1c l\u1ea5y hai s\u1ee3i x\u00e2u nh\u1eefng chi\u1ebfc chu\u00f4ng th\u00e0nh hai c\u00e1i v\u00f2ng: m\u1ed9t v\u00f2ng treo tr\u01b0\u1edbc c\u1eeda nh\u00e0 b\u00e1c cho Cu v\u00e0 C\u00fan ch\u01a1i, v\u00f2ng kia t\u1eb7ng t\u00f4i \u0111em v\u1ec1 treo l\u00ean c\u00e2y n\u00eau tr\u01b0\u1edbc s\u00e2n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ebft \u1ea5y, nh\u1eefng chi\u1ebfc chu\u00f4ng \u0111\u1ea5t nung k\u00eau lanh canh tr\u00ean c\u00e2y n\u00eau l\u00e0m s\u00e2n nh\u00e0 t\u00f4i \u1ea5m \u00e1p v\u00e0 n\u00e1o n\u1ee9c h\u1eb3n l\u00ean.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Ng\u00f4 Qu\u00e2n Mi\u1ec7n)<\/span><br\/><br\/><b>C\u1eadu b\u00e9 v\u00e0 con b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch \u0111\u00e3 l\u00e0m \u0111\u01b0\u1ee3c th\u1ee9 \u0111\u1ed3 ch\u01a1i g\u00ec ?<\/b>","hint":"","column":2,"select":["Nh\u1eefng chi\u1ebfc chu\u00f4ng b\u1eb1ng \u0111\u1ea5t","Nh\u1eefng con gi\u1ed1ng b\u1eb1ng \u0111\u1ea5t","Nh\u1eefng chi\u1ebfc chu\u00f4ng b\u1eb1ng \u0111\u1ed3ng","T\u1ea5t c\u1ea3 c\u00e1c \u0111\u00e1p \u00e1n tr\u00ean."],"explain":"C\u1eadu b\u00e9 v\u00e0 con b\u00e1c th\u1ee3 \u0111\u00f3ng g\u1ea1ch \u0111\u00e3 l\u00e0m \u0111\u01b0\u1ee3c <b>nh\u1eefng chi\u1ebfc chu\u00f4ng b\u1eb1ng \u0111\u1ea5t<\/b>"}]}],"id_ques":292},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n th\u00edch h\u1ee3p nh\u1ea5t","title_trans":"Ch\u1ec9 \u0111\u01b0\u1ee3c ch\u1ecdn m\u1ed9t \u0111\u00e1p \u00e1n ch\u00ednh x\u00e1c nh\u1ea5t","temp":"multiple_choice","correct":[["2"]],"list":[{"point":10,"img":"","ques":"T\u1eeb n\u00e0o d\u01b0\u1edbi \u0111\u00e2y vi\u1ebft sai ch\u00ednh t\u1ea3 ?","hint":"","column":4,"select":["khu\u00f4ng nh\u1ea1c","khu\u00f4n nh\u1ea1c","c\u00e1i chu\u00f4ng","bu\u00f4n b\u00e1n"],"explain":"t\u1eeb vi\u1ebft sai ch\u00ednh t\u1ea3 l\u00e0 t\u1eeb: khu\u00f4n nh\u1ea1c<br\/>vi\u1ebft \u0111\u00fang l\u00e0: Khu\u00f4ng nh\u1ea1c <br\/> Khu\u00f4ng nh\u1ea1c (ti\u1ebfng Anh: stave, staff) l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p g\u1ed3m n\u0103m d\u00f2ng k\u1ebb ngang song song \u0111\u1ed3ng th\u1eddi c\u00e1ch \u0111\u1ec1u nhau, t\u1ea1o th\u00e0nh b\u1ed1n kho\u1ea3ng tr\u1ed1ng \u1edf gi\u1eefa g\u1ecdi l\u00e0 b\u1ed1n khe nh\u1ea1c. T\u1eeb d\u00f2ng k\u1ebb cu\u1ed1i l\u00ean d\u00f2ng k\u1ebb \u0111\u1ea7u th\u1ec3 hi\u1ec7n s\u1ef1 gia t\u0103ng c\u1ee7a cao \u0111\u1ed9. Th\u1ee9 t\u1ef1 d\u00f2ng v\u00e0 khe \u0111\u01b0\u1ee3c \u0111\u1ebfm t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean."}]}],"id_ques":293},{"time":14,"part":[{"title":"Ch\u1ecdn v\u1ea7n (u\u00f4n\/u\u00f4ng) th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","correct":[["u\u00f4n"]],"temp":"drop_blank","list":[{"point":10,"word":["u\u00f4n","u\u00f4ng"],"ques":"<p>b_dr_blank_ l\u00e0ng<\/p> ","hint":"","explain":"bu\u00f4n l\u00e0ng: x\u00f3m l\u00e0ng \u1edf v\u00f9ng d\u00e2n t\u1ed9c thi\u1ec3u s\u1ed1 v\u00f9ng T\u00e2y Nguy\u00ean."}]}],"id_ques":294},{"time":14,"part":[{"title":"Ch\u1ecdn (d\/r\/gi) th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"H\u01b0\u1edbng d\u1eabn: B\u1ea1n h\u00e3y click v\u00e0o t\u1eeb\/c\u1ee5m t\u1eeb \u0111\u1ec3 thay v\u00e0o \u00f4 tr\u1ed1ng th\u00edch h\u1ee3p v\u00e0 t\u1ea1o th\u00e0nh \u0111\u00e1p \u00e1n \u0111\u00fang.","correct":[["gi"]],"temp":"drop_blank","list":[{"point":10,"word":["d","r","gi"],"ques":"<p>\"Xen _dr_blank_\u1eefa nh\u1eefng chi\u1ebfc l\u00e1 xanh l\u00e0 nh\u1eefng ch\u00f9m hoa h\u1ed3ng m\u00e0u r\u1ea5t \u0111\u1eb9p, b\u1ea5t ch\u1ea5p t\u1ea5t c\u1ea3 m\u1ecdi lu\u1eadt l\u1ec7, hoa c\u1ee9 v\u01b0\u01a1n m\u00e3i ra khoe s\u1eafc.\"<\/p> ","hint":"","explain":"Xen <b>gi<\/b>\u1eefa nh\u1eefng chi\u1ebfc l\u00e1 xanh l\u00e0 nh\u1eefng ch\u00f9m hoa h\u1ed3ng m\u00e0u r\u1ea5t \u0111\u1eb9p, b\u1ea5t ch\u1ea5p t\u1ea5t c\u1ea3 m\u1ecdi lu\u1eadt l\u1ec7, hoa c\u1ee9 v\u01b0\u01a1n m\u00e3i ra khoe s\u1eafc."}]}],"id_ques":295},{"time":14,"part":[{"title":"S\u1eafp s\u1ebfp c\u00e1c t\u1eeb d\u01b0\u1edbi \u0111\u00e2y v\u00e0o c\u1ed9t t\u01b0\u01a1ng \u1ee9ng.","title_trans":"S\u1eafp x\u1ebfp c\u00e1c t\u1eeb cho s\u1eb5n v\u00e0o c\u1ed9t ph\u00f9 h\u1ee3p.","temp":"group_word","correct":[[["\u0111\u1ed3ng b\u00e0o","\u0111\u1ed3ng \u0111\u1ed9i","\u0111\u1ed3ng ch\u00ed","\u0111\u1ed3ng h\u01b0\u01a1ng"],["c\u1ed9ng t\u00e1c","\u0111\u1ed3ng t\u00e2m","\u0111\u1ed3ng l\u00f2ng","\u0111\u1ed3ng s\u1ee9c"]]],"list":[{"point":10,"word":["\u0111\u1ed3ng h\u01b0\u01a1ng","\u0111\u1ed3ng b\u00e0o","\u0111\u1ed3ng s\u1ee9c","c\u1ed9ng t\u00e1c","\u0111\u1ed3ng t\u00e2m","\u0111\u1ed3ng \u0111\u1ed9i","\u0111\u1ed3ng ch\u00ed","\u0111\u1ed3ng l\u00f2ng"],"col_name":["Nh\u1eefng ng\u01b0\u1eddi trong c\u1ed9ng \u0111\u1ed3ng","Th\u00e1i \u0111\u1ed9, ho\u1ea1t \u0111\u1ed9ng trong c\u1ed9ng \u0111\u1ed3ng"],"hint":"","number_true":[4,4]}]}],"id_ques":296},{"time":14,"part":[{"title":"S\u1eafp s\u1ebfp c\u00e1c b\u1ed9 ph\u1eadn trong c\u00e2u d\u01b0\u1edbi \u0111\u00e2y v\u00e0o c\u1ed9t t\u01b0\u01a1ng \u1ee9ng cho th\u00edch h\u1ee3p.","title_trans":"S\u1eafp x\u1ebfp c\u00e1c t\u1eeb cho s\u1eb5n v\u00e0o c\u1ed9t ph\u00f9 h\u1ee3p.","temp":"group_word","correct":[[["Lan"],["d\u1eaft m\u1ed9t c\u1ee5 gi\u00e0 qua \u0111\u01b0\u1eddng."]]],"list":[{"point":10,"word":["Lan","d\u1eaft m\u1ed9t c\u1ee5 gi\u00e0 qua \u0111\u01b0\u1eddng."],"col_name":["Ai (con g\u00ec, c\u00e1i g\u00ec)?","l\u00e0m g\u00ec ?"],"hint":"g\u1ee3i \u00fd l\u00e0m b\u00e0i","number_true":[1,1]}]}],"id_ques":297},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"Ch\u1ec9 \u0111\u01b0\u1ee3c ch\u1ecdn m\u1ed9t \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0 \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t","temp":"multiple_choice","correct":[["2"]],"list":[{"point":10,"img":"","ques":"C\u00e2u n\u00e0o d\u01b0\u1edbi \u0111\u00e2y thu\u1ed9c ki\u1ec3u c\u00e2u: <b>Ai - l\u00e0m g\u00ec ?<\/b>","hint":"","column":1,"number_true":1,"select":["C\u00e1 S\u1ea5u c\u00f3 b\u1ea3y \u0111\u1ee9a con.","C\u00e1 S\u1ea5u b\u1ed1 t\u00ecm m\u1ed9t th\u1ea7y gi\u00e1o v\u1ec1 d\u1ea1y cho h\u1ecdc cho l\u0169 con.","Ch\u00f3 R\u1eebng n\u1ed5i ti\u1ebfng l\u00e0 m\u1ed9t h\u1ecdc gi\u1ea3.","Ch\u00fa m\u00e8o c\u00f3 b\u1ed9 l\u00f4ng m\u01b0\u1ee3t m\u00e0."],"explain":"C\u00e2u thu\u1ed9c ki\u1ec3u c\u00e2u: <b>Ai - l\u00e0m g\u00ec ?<\/b> \u0111\u00f3 l\u00e0:<br\/><b>C\u00e1 S\u1ea5u b\u1ed1 t\u00ecm m\u1ed9t th\u1ea7y gi\u00e1o v\u1ec1 d\u1ea1y cho h\u1ecdc cho l\u0169 con.<\/b><br\/>Trong \u0111\u00f3: b\u1ed9 ph\u1eadn <b>C\u00e1 S\u1ea5u b\u1ed1<\/b> tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi <i>Ai (con g\u00ec, c\u00e1i g\u00ec) ?<\/i>; <b>t\u00ecm m\u1ed9t th\u1ea7y gi\u00e1o v\u1ec1 d\u1ea1y cho h\u1ecdc cho l\u0169 con.<\/b> tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi <i>l\u00e0m g\u00ec ?<\/i>"}]}],"id_ques":298},{"time":14,"part":[{"title":"S\u1eafp x\u1ebfp c\u00e1c t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e2u ho\u00e0n ch\u1ec9nh:","title_trans":"","temp":"sentence_reorder","correct":[["Minh nh\u01b0\u1eddng gh\u1ebf cho m\u1ed9t c\u1ee5 gi\u00e0 tr\u00ean xe bu\u00fdt."]],"list":[{"point":10,"ques":"","arr_word":["c\u1ee5 gi\u00e0","cho m\u1ed9t","Minh","nh\u01b0\u1eddng gh\u1ebf","tr\u00ean xe bu\u00fdt."],"hint":"","explain":"C\u00e2u ho\u00e0n ch\u1ec9nh l\u00e0: <b>Minh nh\u01b0\u1eddng gh\u1ebf cho m\u1ed9t c\u1ee5 gi\u00e0 tr\u00ean xe bu\u00fdt.<\/b>"}]}],"id_ques":299},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"Ch\u1ec9 \u0111\u01b0\u1ee3c ch\u1ecdn m\u1ed9t \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0 \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t","temp":"multiple_choice","correct":[["4"]],"list":[{"point":10,"img":"","ques":"T\u1eeb n\u00e0o sau \u0111\u00e2y tr\u00e1i ngh\u0129a v\u1edbi t\u1eeb <b>\"ch\u0103m ch\u1ec9\"<\/b> ?","hint":"T\u1eeb tr\u00e1i ngh\u0129a l\u00e0 t\u1eeb c\u00f3 ngh\u0129a tr\u00e1i ng\u01b0\u1ee3c nhau","column":4,"select":["c\u1ea7n c\u00f9","ch\u1ecbu kh\u00f3","si\u00eang n\u0103ng","l\u01b0\u1eddi bi\u1ebfng"],"explain":"tr\u00e1i ngh\u0129a v\u1edbi t\u1eeb ch\u0103m ch\u1ec9 l\u00e0: <b>l\u01b0\u1eddi bi\u1ebfng<\/b>"}]}],"id_ques":300}],"lesson":{"save":0,"level":3}}

Điểm của bạn.

Câu hỏi này theo dạng chọn đáp án đúng, sau khi đọc xong câu hỏi, bạn bấm vào một trong số các đáp án mà chương trình đưa ra bên dưới, sau đó bấm vào nút gửi để kiểm tra đáp án và sẵn sàng chuyển sang câu hỏi kế tiếp

Trả lời đúng trong khoảng thời gian quy định bạn sẽ được + số điểm như sau:
Trong khoảng 1 phút đầu tiên + 5 điểm
Trong khoảng 1 phút -> 2 phút + 4 điểm
Trong khoảng 2 phút -> 3 phút + 3 điểm
Trong khoảng 3 phút -> 4 phút + 2 điểm
Trong khoảng 4 phút -> 5 phút + 1 điểm

Quá 5 phút: không được cộng điểm

Tổng thời gian làm mỗi câu (không giới hạn)

Điểm của bạn.

Bấm vào đây nếu phát hiện có lỗi hoặc muốn gửi góp ý