Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
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\" y=\"-24.5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["<strong>A<\/strong>. M\u1ea1ng k\u1ebft n\u1ed1i các máy tính trên toàn th\u1ebf gi\u1edbi.","<strong>B<\/strong>. Tên c\u1ee7a m\u1ed9t qu\u1ed1c gia trên th\u1ebf gi\u1edbi."],"correct":"1","level":"1","hint":"","answer":"<p>\u0110áp án \u0111úng là:<span style=\"color:#27ae60;\"><strong> A. M\u1ea1ng k\u1ebft n\u1ed1i các máy tính trên toàn th\u1ebf gi\u1edbi.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"0","date":"2022-03-19 00:51:05","option_type":"txt","len":3},{"id":"4673","post_id":"5587","mon_id":"1158360","chapter_id":"1158497","question":"<p>Ngh\u0129a c\u1ee7a t\u1eeb "hu\u1ea5n luy\u1ec7n" là gì?<\/p>","options":["<strong>A<\/strong>. Hoàn thành các bài t\u1eadp v\u1ec1 nhà.","<strong>B<\/strong>. Gi\u1ea3ng d\u1ea1y và h\u01b0\u1edbng d\u1eabn luy\u1ec7n t\u1eadp."],"correct":"2","level":"1","hint":"","answer":"<p>\u0110áp án \u0111úng là:<span style=\"color:#27ae60;\"><strong> B. Gi\u1ea3ng d\u1ea1y và h\u01b0\u1edbng d\u1eabn luy\u1ec7n t\u1eadp.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"0","date":"2022-03-19 00:56:31","option_type":"txt","len":3},{"id":"4674","post_id":"5587","mon_id":"1158360","chapter_id":"1158497","question":"<p><span style=\"color:#2980b9;\"><strong>T\u1eea CHÚ B\u1ed2 CÂU \u0110\u1ebeN IN-T\u01a0-NÉT<\/strong><\/span><\/p><p><span style=\"color:#2980b9;\">Ngoài trò chuy\u1ec7n tr\u1ef1c ti\u1ebfp, con ng\u01b0\u1eddi còn ngh\u0129 ra r\u1ea5t nhi\u1ec1u cách \u0111\u1ec3 trao \u0111\u1ed5i v\u1edbi nhau khi \u1edf xa.<\/span><\/p><p><span style=\"color:#2980b9;\">T\u1eeb xa x\u01b0a, ng\u01b0\u1eddi ta \u0111ã bi\u1ebft hu\u1ea5n luy\u1ec7n b\u1ed3 câu \u0111\u1ec3 \u0111\u01b0a th\u01b0. B\u1ed3 câu nh\u1edb \u0111\u01b0\u1eddng r\u1ea5t t\u1ed1t. Nó có th\u1ec3 bay qua m\u1ed9t ch\u1eb7ng \u0111\u01b0\u1eddng dài hàng nghìn cây s\u1ed1 \u0111\u1ec3 mang th\u01b0 \u0111\u1ebfn \u0111úng n\u01a1i nh\u1eadn.<\/span><\/p><p><span style=\"color:#2980b9;\">Nh\u1eefng ng\u01b0\u1eddi \u0111i bi\u1ec3n còn ngh\u0129 ra cách b\u1ecf th\u01b0 vào trong nh\u1eefng chi\u1ebfc chai thu\u1ef7 tinh. Nh\u1edd sóng bi\u1ec3n, nh\u1eefng chi\u1ebfc chai này \u0111\u01b0\u1ee3c \u0111\u1ea9y vào \u0111\u1ea5t li\u1ec1n. Có nh\u1eefng b\u1ee9c th\u01b0 vài ch\u1ee5c n\u0103m sau m\u1edbi \u0111\u01b0\u1ee3c tìm th\u1ea5y.<\/span><\/p><p><span style=\"color:#2980b9;\">Ngày nay, vi\u1ec7c trao \u0111\u1ed5i thông tin d\u1ec5 dàng h\u01a1n r\u1ea5t nhi\u1ec1u. B\u1ea1n có th\u1ec3 vi\u1ebft th\u01b0, g\u1ecdi \u0111i\u1ec7n cho ng\u01b0\u1eddi khác. Nh\u1edd có in-t\u01a1-nét, b\u1ea1n c\u0169ng có th\u1ec3 nhìn th\u1ea5y ng\u01b0\u1eddi nói chuy\u1ec7n v\u1edbi mình, dù hai ng\u01b0\u1eddi \u0111ang \u1edf cách nhau r\u1ea5t xa.<\/span><span style=\"color:#2980b9;\"><\/span><\/p><p>Th\u1eddi xa x\u01b0a, ng\u01b0\u1eddi ta \u0111ã g\u1eedi th\u01b0 b\u1eb1ng nh\u1eefng cách nào?<\/p>","options":["<strong>A<\/strong>. Vi\u1ebft th\u01b0 trong hòm th\u01b0 \u0111i\u1ec7n t\u1eed","<strong>B<\/strong>. Dùng chim b\u1ed3 câu g\u1eedi th\u01b0 \u0111\u1ebfn ng\u01b0\u1eddi nh\u1eadn.","<strong>C<\/strong>. B\u1ecf th\u01b0 vào chai th\u1ee7y tinh nh\u1edd sóng bi\u1ec3n \u0111\u01b0a v\u1ec1 \u0111\u1ea5t li\u1ec1n."],"correct":"[\"2\",\"3\"]","level":"1","hint":"","answer":"<p>\u0110áp án \u0111úng và \u0111\u1ea7y \u0111\u1ee7 là: <\/p><p><strong><span style=\"color:#16a085;\">B. Dùng chim b\u1ed3 câu g\u1eedi th\u01b0 \u0111\u1ebfn ng\u01b0\u1eddi nh\u1eadn.<\/span><\/strong><\/p><p><strong><span style=\"color:#16a085;\">C. B\u1ecf th\u01b0 vào chai th\u1ee7y tinh nh\u1edd sóng bi\u1ec3n \u0111\u01b0a v\u1ec1 \u0111\u1ea5t li\u1ec1n.<\/span><\/strong><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"129","test":"0","date":"2022-03-19 01:02:14","option_type":"txt","len":3}]}