Tải về file này: (DAP-AN-TOAN-12-THI-THU-TUAN-31-2020-05-30-dieuchinh.xlsx, 21KB)
Xem đề tại link: https://drive.google.com/drive/folders/1zzHfNohb0huhFB6IfQnEfCW-YcJVqp3x?usp=sharing
Xem bài làm tại link: https://drive.google.com/drive/folders/1KnG9bdsZER0hAzzINgvkK4Ce-s4iQTiJ?usp=sharing
