/qa/cau-hoi-va-cach-giai-chi-tiet-1394/ 2020-03-20T20:02:50+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1393/ 2020-03-20T20:02:50+00:00 /qa/phat-bieu-nao-sau-day-la-dung-156/ 2020-03-20T20:02:51+00:00 /qa/trong-mot-thi-nghiem-ve-giao-thoa-song-nuoc-hai-nguon-song-ket-hop-dao-dong-cung-pha-dat-tai-hai-die-2/ 2020-03-20T20:02:51+00:00 /qa/trong-thi-nghiem-iang-nguoi-ta-dung-anh-sang-don-sac-co-buoc-song-%ce%bb-06%ce%bcm-khoang-cach-giua-hai-khe/ 2020-03-20T20:02:51+00:00 /qa/trong-giao-thoa-voi-khe-young-co-a-15mm-d-3m-nguoi-ta-dem-co-tat-ca-7-van-sang-ma-khoang-cach-gi/ 2020-03-20T20:02:51+00:00 /qa/giao-thoa-iang-thuc-hien-dong-thoi-voi-hai-anh-sang-don-sac/ 2020-03-20T20:02:51+00:00 /qa/chon-phuong-an-sai-3/ 2020-03-20T20:02:51+00:00 /qa/mot-may-rada-quan-su-dat-tren-mat-dat-o-dao-ly-son-quang-ngai-co-toa-do/ 2020-03-20T20:02:51+00:00 /qa/trong-mot-binh-kin-chua-108-g-kim-loai-m-chi-co-mot-hoa-tri-va-06-mol-o2-nung-binh-mot-thoi-gian-s/ 2020-03-20T20:02:52+00:00 /qa/hon-hop-a-gom-agno3-va-cuno32-co-cung-so-mol-nhiet-phan-hon-hop-a-toi-hoan-toan-duoc-hon-hop-khi/ 2020-03-20T20:02:52+00:00 /qa/cho-a-mol-hoac-b-mol-co2-b-a-hap-thu-het-vao-dung-dich-chua-c-mol-caoh2-thi-thay-luong-ket-tua/ 2020-03-20T20:02:52+00:00 /qa/x-y-z-la-3-nguyen-to-o-cung-chu-ky-oxit-cua-x-tan-trong-nuoc-tao-ra-dung-dich-co-ph-7-oxit-cua/ 2020-03-20T20:02:52+00:00 /qa/cho-002-mol-amino-axit-x-tac-dung-vua-du-voi-200-ml-dung-dich-hcl-01m-thu-duoc-367-gam-muoi-khan-ma-2/ 2020-03-20T20:02:52+00:00 /qa/dien-phan-500-ml-dung-dich-hon-hop-gom-nacl-01m-va-alcl3-03m-co-mang-ngan-dien-cuc-tro-toi-khi-o-ano/ 2020-03-20T20:02:52+00:00 /qa/cho-m-gam-bot-fe-vao-800-ml-dung-dich-hon-hop-gom-cuno32-02m-va-h2so4-025m-sau-khi-cac-phan-ung-x-2/ 2020-03-20T20:02:52+00:00 /qa/xa-phong-hoa-222-g-hon-hop-x-gom-cac-este-ch3cooch3-hcooc2h5-bang-dung-dich-xut-an-da-vua-du-thu-duo/ 2020-03-20T20:02:52+00:00 /qa/khi-crackinh-hoan-toan-66g-propan-thu-duoc-hon-hop-khi-x-cho-x-suc-cham-vao-250-ml-dung-dich-br2-th/ 2020-03-20T20:02:52+00:00 /qa/hon-hop-x-gom-1-ankin-o-the-khi-va-hidro-co-ti-khoi-hoi-so-voi-ch4-la-0425-nung-nong-hon-hop-x-voi/ 2020-03-20T20:02:52+00:00 /qa/theo-dinh-nghia-axit-bazo-cua-bronstet-co-bao-nhieu-ion-la-axit-trong-so-cac-ion-sau-fe2-al3-n/ 2020-03-20T20:02:52+00:00 /qa/co-the-dung-cac-dung-dich-sau-day-de-lam-giam-do-cung-vinh-cuu/ 2020-03-20T20:02:52+00:00 /qa/axit-huu-co-x-thoa-man-dieu-kien-sau-a-g-x-tac-dung-voi-nahco3-du-thu-duoc-v-lit-khi-co2-dot-c/ 2020-03-20T20:02:52+00:00 /qa/cho-so-do-phan-ung-sau-x/ 2020-03-20T20:02:53+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1395/ 2020-03-20T20:02:53+00:00 /qa/tron-cac-hon-hop-sau-theo-ty-le-so-mol-1-1-1-na-va-al-2/ 2020-03-20T20:02:53+00:00 /qa/co-hon-hop-khi-oxi-va-ozon-sau-mot-thoi-gian-ozon-bi-phan-huy-het-thu-duoc-mot-chat-khi-duy-nhat-co/ 2020-03-20T20:02:53+00:00 /qa/cho-cac-phan-ung-hoa-hoc-sau-a-cl2-2kbr-%e2%86%92-2kcl-br2-b-cl2-2naoh-%e2%86%92-nacl-naclo-h2o-c/ 2020-03-20T20:02:53+00:00 /qa/trong-cong-nghiep-nguoi-ta-dieu-che-al-bang-cach-nao-duoi-day/ 2020-03-20T20:02:53+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1396/ 2020-03-20T20:02:54+00:00 /qa/tron-n2-va-h2-rooifddem-tien-hanh-tong-hop-nh3-sau-phan-ung-thu-duoc-hon-hop-gom-3-khi-co-the-tich/ 2020-03-20T20:02:54+00:00 /qa/khi-lam-thi-nghiem-voi-anilin-xong-truoc-khi-rua-lai-dung-cu-thi-nghiem-bang-nuoc-sach-nen-rua-dung/ 2020-03-20T20:02:54+00:00 /qa/co-the-dung-cac-dung-dich-sau-day-de-tach-ag-ra-khoi-hon-hop-bot-ag-fe-cu-pb-ma-khong-lam-thay-doi-k/ 2020-03-20T20:02:54+00:00 /qa/cho-hon-hop-x-gom-006-mol-cu2fes2-va-a-mol-cus2-tac-dung-du-voi-dung-dich-hno3-nong-thu-duoc-dung-di/ 2020-03-20T20:02:54+00:00 /qa/cho-v-lit-dung-dich-hcl-2-m-vao-dung-dich-chua-03-mol-natricromit-tinh-v-de-sau-phan-ung-thu-duoc/ 2020-03-20T20:02:54+00:00 /qa/cho-so-do-phan-ung-c2h2-%e2%86%92-x-%e2%86%92-y-%e2%86%92-ch3cooh-trong-so-cac-chat-c2h6-c2h4-ch3cho-ch3coochch2-t/ 2020-03-20T20:02:54+00:00 /qa/phan-tu-nao-duoi-day-chi-chua-lien-ket-ion/ 2020-03-20T20:02:54+00:00 /qa/cho-hon-hop-ran-bao-al2o3-fe2o3-vao-nuoc-duoc-dung-dich-x-va-chat-ran-suc-co2-cho-debs-du-vao-dung-d/ 2020-03-20T20:02:54+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1397/ 2020-03-20T20:02:55+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1398/ 2020-03-20T20:02:55+00:00 /qa/cho-106-g-hon-hop-al-mg-fe-tac-dung-voi-v-lit-hon-hop-cl2-o2-co-ty-khoi-so-voi-h2-la-2575-phan-ung/ 2020-03-20T20:02:56+00:00 /qa/nung-5-g-hon-hop-x-gom-ca-cuo-fe2o3-al2o3-trong-binh-chan-khong-thu-duoc-chat-ran-y-cho-y-tac-dung/ 2020-03-20T20:02:56+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1399/ 2020-03-20T20:02:56+00:00 /qa/dat-dien-ap-xoay-chieu-co-gia-tri-hieu-dung-khong-doi-200v-vao-doan-mach-ab-gom-doan-am-chi-chua-die/ 2020-03-20T20:02:57+00:00 /qa/giai-phuong-trinh-tanxcot2x-1sin/ 2020-03-20T20:02:57+00:00 /qa/hai-vat-a-va-b-co-cung-khoi-luong-1-kg-va-co-kich-thuoc-nho-duoc-noi-voi-nhau-bang-mot-soi-day-manh/ 2020-03-20T20:02:57+00:00 /qa/khi-song-am-truyen-tu-khong-khi-vao-nuoc-thi-2/ 2020-03-20T20:02:57+00:00 /qa/dien-phan-dung-dich-chua-x-mol-nacl-y-mol-cuso4-thu-duoc-dung-dich-x-co-ph-7-quan-he-giua-x-va-y/ 2020-03-20T20:02:57+00:00 /qa/cho-m1-gam-hon-hop-k2o-al2o3-tan-het-trong-nuoc-thu-duoc-100-ml-dung-dich-y-chi-chua-1-muoi-co-nong/ 2020-03-20T20:02:57+00:00 /qa/hidro-hoa-hoan-toan-m-gam-hon-hop-x-gom-hai-andehit-no-don-chuc-mach-ho-ke-tiep-nhau-trong-day-dong-5/ 2020-03-20T20:02:57+00:00 /qa/khi-trung-ngung-75-g-axit-aminoaxetic-voi-hieu-suat-80-nguoi-ta-thu-duoc-m-g-polime-va-144-g-nuoc/ 2020-03-20T20:02:57+00:00 /qa/mot-doan-mach-dien-xoay-chieu-ab-gom-doan-am-noi-tiep-voi-doan-mb-trong-do-am-chua-cuon-day-co-d/ 2020-03-20T20:02:58+00:00 /qa/dat-dien-ap-xoay-chieu-vao-hai-dau-doan-mach-mac-noi-tiep-gom-dien-tro-thuan-r-100%cf%89-cuon-cam-thua/ 2020-03-20T20:02:58+00:00 /qa/m-va-n-la-hai-diem-tren-cung-mot-phuong-truyen-song-tren-mat-nuoc-cach-nguon-theo-thu-tu-d15cm-va-d/ 2020-03-20T20:02:58+00:00 /qa/mot-lo-xo-co-do-cung-200n-m-duoc-dat-nam-ngang-mot-dau-duoc-giu-co-dinh-dau-con-lai-duoc-gan-voi-cha/ 2020-03-20T20:02:58+00:00 /qa/hai-nhac-cu-khac-loai-cung-choi-mot-ban-nhac-ta-nhan-biet-duoc-loai-nhac-cu-la-nho-am-sac-am-sac-kh/ 2020-03-20T20:02:58+00:00 /qa/moi-lien-he-giua-li-do-x-toc-do-v-va-tan-so-goc-%cf%89-cua-mot-dao-dong-dieu-hoa-khi-the-nang-bang-3-lan-2/ 2020-03-20T20:02:58+00:00 /qa/trong-qua-trinh-giao-thoa-song-dao-dong-tong-hop-tai-m-chinh-la-su-tong-hop-cac-song-thanh-phan-goi/ 2020-03-20T20:02:58+00:00 /qa/mot-khung-day-dan-quay-deu-quanh-truc/ 2020-03-20T20:02:58+00:00 /qa/o-be-mat-mot-chat-long-co-hai-nguon-phat-song-ket-hop-s1-va-s2-cach-nhau-21cm-hai-nguon-nay-dao-don/ 2020-03-20T20:02:58+00:00 /qa/trong-mach-dao-dong-lc-li-tuong-luc-to-0-ban-tu-a-tich-dien-am-ban-tu-b-tich-dien-duong-va-chieu/ 2020-03-20T20:02:58+00:00 /qa/cho-mot-electron-co-van-toc-106-m-s-di-vao-vung-khong-gian-co-ca-tu-truong-deu-cam-ung-tu/ 2020-03-20T20:02:59+00:00 /qa/cuon-so-cap-cua-mot-may-bien-ap-duoc-mac-vao-mang-dien-xoay-chieu-co-dien-ap-hieu-dung-khong-doi-100/ 2020-03-20T20:02:59+00:00 /qa/doan-mach-ab-noi-tiep-gom-hai-doan-mach-am-va-mb-doan-mach-am-la-mot-cuon-day-co-dien-tro-thuan/ 2020-03-20T20:02:59+00:00 /qa/dac-diem-chung-cua-song-co-va-song-dien-tu-la/ 2020-03-20T20:02:59+00:00 /qa/mot-nguon-sang-diem-a-thuoc-truc-chinh-cua-mot-thau-kinh-mong-cach-quang-tam-cua-thau-kinh-18-cm-qua/ 2020-03-20T20:02:59+00:00 /qa/mot-vat-dao-dong-dieu-hoa-tren-quy-dao-dai-40cm-khi-do-doi-la-10cm-vat-co-van-toc-20%cf%80/ 2020-03-20T20:02:59+00:00 /qa/dat-dien-ap-36/ 2020-03-20T20:02:59+00:00 /qa/nguoi-ta-truyen-tai-mot-cong-suat-khong-doi-bang-dong-dien-xoay-chieu-mot-pha-tu-nha-may-dien-den-no/ 2020-03-20T20:02:59+00:00 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2020-03-20T20:03:00+00:00 /qa/trong-phan-ung-este-hoa-giua-ancol-etylic-va-axit-axetic-axit-sunfuric-khong-dong-vai-tro/ 2020-03-20T20:03:00+00:00 /qa/neu-cho-1-mol-moi-chat-caocl2-kmno4-k2cr2o7-mno2-lan-luot-phan-ung-voi-luong-du-dung-dich-hcl-dac-c/ 2020-03-20T20:03:00+00:00 /qa/mach-dao-dong-lc-li-tuong-dang-hoat-dong-dien-tich-cuc-dai-cua-tu-dien-la/ 2020-03-20T20:03:00+00:00 /qa/nguyen-tac-hoat-dong-mach-chon-song-trong-may-thu-thanh-dua-tren-hien-tuong-2/ 2020-03-20T20:03:00+00:00 /qa/khi-noi-ve-mot-he-co-hoc-dao-dong-cuong-buc-phat-bieu-nao-duoi-day-la-sai/ 2020-03-20T20:03:00+00:00 /qa/x-va-y-lan-luot-la-cac-tripeptit-va-tetrapeptit-duoc-tao-thanh-tu-cung-mot-amino-axit-no-mach-ho-co/ 2020-03-20T20:03:00+00:00 /qa/hon-hop-a-gom-al-va-mot-oxit-sat-duoc-chia-thanh-2-phan-bang-nhau-phan-1-cho-tac-dung-voi-dung/ 2020-03-20T20:03:00+00:00 /qa/de-chung-minh-trong-phan-tu-cua-glucozo-co-nhieu-nhom-hidroxyl-nguoi-ta-cho-dung-dich-glucozo-phan/ 2020-03-20T20:03:01+00:00 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/qa/mot-mach-dao-dong-dien-tu-lc-co-chu-ki-dao-dong-rieng-la-t-tai-thoi-diem-ban-dau-dien-tich-tren-tu-2/ 2020-03-20T20:03:05+00:00 /qa/hai-mach-dao-dong-lc-li-tuong-doc-lap-voi-nhau-dang-co-dao-dong-dien-tu-goi/ 2020-03-20T20:03:05+00:00 /qa/cau-hoi-va-cach-giai-chi-tiet-1404/ 2020-03-20T20:03:05+00:00 /qa/mot-con-lac-lo-xo-treo-thang-dung-gom-lo-xo-nhe-do-cung-la-50-n-m-va-vat-nang-khoi-luong-200-g-keo/ 2020-03-20T20:03:06+00:00 /qa/dat-dien-ap-39/ 2020-03-20T20:03:06+00:00 /qa/mot-con-lac-lo-xo-dao-dong-dieu-hoa-doc-tren-truc-ox-theo-phuong-ngang-xung-quanh-vi-tri-can-bang-o-2/ 2020-03-20T20:03:06+00:00 /qa/dat-dien-ap-38/ 2020-03-20T20:03:06+00:00 /qa/dat-dien-ap-u-uo-cos100%cf%80tv-uo-khong-doi-vao-hai-dau-doan-mach-mac-noi-tiep-gom-dien-tro-thuan/ 2020-03-20T20:03:06+00:00 /qa/cho-doan-mach-dien-xoay-chieu-ab-mac-noi-tiep-theo-thu-tu-gom-dien-tro-thuan-r-tu-dien-co-dien-dung-2/ 2020-03-20T20:03:06+00:00 /qa/mach-dien-ab-gom-doan-mach-am-noi-tiep-voi-doan-mach-mb-dat-vao-hai-dau-mach-dien-ap-u-150/ 2020-03-20T20:03:06+00:00 /qa/phat-bieu-nao-la-dung-khi-noi-ve-sieu-am-2/ 2020-03-20T20:03:06+00:00 /qa/khi-noi-ve-song-am-phat-bieu-nao-sau-day-khong-dung/ 2020-03-20T20:03:06+00:00 /qa/dat-dien-ap-xoay-chieu-u-uocos2-%cf%80ft-trong-do-uo-khong-doi-f-thay-doi-duoc-vao-hai-dau-doan-mach/ 2020-03-20T20:03:06+00:00 /qa/tren-mot-soi-day-dan-hoi-dang-co-song-dung-voi-tan-so-100-hz-nguoi-ta-thay-khoang-cach-giua-hai-nut/ 2020-03-20T20:03:06+00:00 /qa/dat-dien-ap-37/ 2020-03-20T20:03:06+00:00 /qa/trong-dao-dong-cuong-buc-cua-mot-vat-khi-xay-ra-cong-huong-thi-vat-tiep-tuc-dao-dong/ 2020-03-20T20:03:07+00:00 /qa/mot-nguon-sang-diem-a-thuoc-truc-chinh-cua-mot-thau-kinh-mong-cach-quang-tam-cua-thau-kinh-18-cm-qua-2/ 2020-03-20T20:03:07+00:00 /qa/mot-vat-dao-dong-dieu-hoa-co-chu-ki-t-neu-chon-goc-thoi-gian-t-0-luc-vat-qua-vi-tri-can-bang-thi/ 2020-03-20T20:03:07+00:00 /qa/hai-dao-dong-dieu-hoa-cung-phuong-cung-tan-so-va-cung-bien-do-a-dao-dong-tong-hop-cua-hai-dao-dong-2/ 2020-03-20T20:03:07+00:00 /qa/tai-mat-nuoc-co-hai-nguon-song-ket-hop/ 2020-03-20T20:03:07+00:00 /qa/mot-vat-dang-dao-dong-dieu-hoa-thi-bat-dau-chiu-tac-dung-cua-mot-luc-can-co-do-lon-khong-doi-thi-vat/ 2020-03-20T20:03:07+00:00 /qa/mot-may-bien-ap-li-tuong-co-so-vong-day-cuon-so-cap-gap-10-lan-so-vong-day-cuon-thu-cap-may-bien-ap-2/ 2020-03-20T20:03:07+00:00 /qa/trong-gio-hoc-thuc-hanh-mot-hoc-sinh-can-xac-dinh-sai-so-tuyet-doi-%e2%88%86-f-cua-mot-dai-luong-f-do-gian-t/ 2020-03-20T20:03:07+00:00 /qa/de-khac-phuc-tinh-trang-dua-xe-moto-tren-duong-pho-o-gan-cac-khu-dan-cu-nguoi-ta-thuong-lam-cac-dai/ 2020-03-20T20:03:07+00:00 /qa/dien-ap-giua-hai-dau-mot-doan-mach-co-bieu-thuc-u-220cos100%cf%80t-v-gia-tri-hieu-dung-cua-dien-ap/ 2020-03-20T20:03:07+00:00 /qa/hap-thu-het-1792-lit-co2-dktc-vao-1-lit-dung-dich-naoh-a-mol-lit-thu-duoc-dung-dich-x-cho-dung/ 2020-03-20T20:03:07+00:00 /qa/mot-con-lac-lo-xo-dao-dong-tat-dan-cham-tren-truc-ox-do-co-ma-sat-giua-vat-va-mat-phang-ngang-cu-sa/ 2020-03-20T20:03:07+00:00 /qa/ghep-cac-hoi-chung-benh-o-nguoi-va-dang-dot-bien-cho-phu-hop-1-dot-bien-so-luong-nst/ 2020-03-20T20:03:08+00:00 /qa/o-mot-loai-dong-vat-alen-a-quy-dinh-canh-thang-troi-hoan-toan-so-voi-alen-a-quy-dinh-canh-venh-alen/ 2020-03-20T20:03:08+00:00 /qa/dien-phan-dung-dich-chua-a-mol-cuso4-va-b-mol-nacl-voi-dien-cuc-tro-co-mang-ngan-xop-de-dung-dic-2/ 2020-03-20T20:03:08+00:00 /qa/cho-8-gam-hon-hop-x-gom-mg-va-fe-vao-dung-dich-hcl-du-thu-duoc-448-lit-h2-dktc-neu-cho-8-gam-hon/ 2020-03-20T20:03:08+00:00 /qa/phat-bieu-nao-sau-day-la-dung-khi-noi-ve-song-co-hoc-5/ 2020-03-20T20:03:08+00:00 /qa/tan-so-dao-dong-rieng-cua-mot-con-lac-lo-xo-la-fo-ngoai-luc-tac-dung-vao-con-lac-co-dang-f-foco/ 2020-03-20T20:03:08+00:00 /qa/dien-nang-duoc-truyen-di-voi-cong-suat-p-tren-mot-duong-day-tai-dien-duoi-dien-ap-u-hieu-suat-cua-qu-2/ 2020-03-20T20:03:08+00:00 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2020-03-20T20:03:10+00:00 /qa/khi-noi-ve-dot-bien-dao-doan-nhiem-sac-the-phat-bieu-nao-sau-day-dung-2/ 2020-03-20T20:03:10+00:00 /qa/cho-biet-moi-cap-gen-quy-dinh-mot-cap-tinh-trang-va-gen-troi-la-troi-hoan-toan-co-the-tu-boi-giam-p-3/ 2020-03-20T20:03:10+00:00 /qa/khi-noi-ve-tam-dong-cua-nhiem-sac-the-nhung-phat-bieu-nao-sau-day-dung-1-tam-dong-la-trinh-tu/ 2020-03-20T20:03:10+00:00 /qa/mau-long-den-cua-chuot-guinea-do-gen-troi-b-quy-dinh-va-mau-trang-do-gen-lan-b-gia-thiet-cac-ca-the/ 2020-03-20T20:03:10+00:00 /qa/mot-loai-thuc-vat-luong-boi-co-4-nhom-gen-lien-ket-gia-su-co-8-the-dot-bien-ki-hieu-tu-1-den-8-2/ 2020-03-20T20:03:10+00:00 /qa/tren-mot-mach-cua-gen-co-ti-le-atgx-3221-ti-le/ 2020-03-20T20:03:10+00:00 /qa/f1-la-nhung-ca-the-di-hop-2-cap-gen-co-kieu-hinh-than-cao-hat-tron-tu-thu-phan-f1-thu-duoc-7000-cay/ 2020-03-20T20:03:10+00:00 /qa/o-loai-cuu-con-duc-co-kieu-gen-ss-va-ss-deu-quy-dinh-tinh-trang-co-sung-kieu-gen-ss-quy-dinh-tinh-tr/ 2020-03-20T20:03:11+00:00 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2020-03-20T20:03:11+00:00 /qa/o-mot-loai-thuc-vat-biet-rang-a-than-cao-a-than-thap-bb-hoa-do-bb-hoa-hong-bb-hoa-trang-hai/ 2020-03-20T20:03:11+00:00 /qa/mot-cay-co-kieu-gen-2/ 2020-03-20T20:03:11+00:00 /qa/trong-qua-trinh-dich-ma-8/ 2020-03-20T20:03:12+00:00 /qa/nhan-to-nao-trong-cac-nhan-to-sau-day-vua-co-kha-nang-lam-phong-phu-von-gen-cua-quan-the-vua-co-kha/ 2020-03-20T20:03:12+00:00 /qa/trong-dien-the-nguyen-sinh-cang-ve-sau-thi/ 2020-03-20T20:03:12+00:00 /qa/o-ga-gen-quy-dinh-mau-sac-long-nam-tren-vung-khong-tuong-dong-cua-nst-gioi-tinh-x-co-2-alen-alen-a/ 2020-03-20T20:03:12+00:00 /qa/tinh-trang-mau-hoa-do-gen-nam-trong-te-bao-quy-dinh-lay-hat-phan-cua-cay-hoa-do-thu-phan-cho-cay-ho/ 2020-03-20T20:03:12+00:00 /qa/khi-noi-ve-su-phan-tang-trong-quan-xa-xet-cac-ket-luan-sau-1-vung-co-khi-hau-nhiet-doi-tat-ca-ca/ 2020-03-20T20:03:12+00:00 /qa/trong-qua-trinh-phat-sinh-va-phat-trien-su-song-tren-trai-dat-loai-chat-huu-co-mang-thong-tin-di-tru-3/ 2020-03-20T20:03:12+00:00 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