... cda l~di det h gida 2 ldp niy. 5.2- C6u tao cac 15p cda : a- Cua so" Eztdi : (H5 -17) -Khung canh cda th~fdng dGdc lam b5ng gB, cGng c6 thd b&ng th6p hay nhbin, ldp b phia ... san nha : - Phbng lam vi$c, hoc t$p : 115 - 116 - Phbng 6, tigp khach, gi6i tri : 117 - 118 - Ph6ng phu, xi, tBm, kho : 1/10 - 1/12. 2.2- Dien tich th6ng gio : Cgn cd...