11/5

<p>Collo b1 và b2: <a href="https://drive.google.com/drive/folders/1l5ZTgxJp9jgcqH8j2ve_i2hPz-MgfZs… 4: <a href="https://docs.google.com/document/d/1RGaupBUsYNEt3afL485UkeQgDiY1YF4_mol…;Điền khuyết b5 và b6: <a href="https://drive.google.com/drive/folders/1zAMKSDsHnaFGmTvjBr79aD-vWhoez-J…;