Nộp bài tập hoá by https://padlet.com/43dangthivan11a13/93pq3gdt0pwzu8e6 Đư en-us 2022-02-10 05:43:38 UTC 2022-02-10 05:47:15 UTC hello@padlet.com Hạn 16h ngày hôm nayy 43dangthivan11a13 https://padlet.com/43dangthivan11a13/93pq3gdt0pwzu8e6/wish/2039536813 2022-02-10 05:46:00 UTC https://padlet.com/43dangthivan11a13/93pq3gdt0pwzu8e6/wish/2039536813