Swiftly rising fascination premiums are typically unwelcome information for telecom firms carrying loads of financial debt. This means potential bargains and/or debt refinancing could be costlier.K?t Qu? X? S? K?t Qu? X? S? Mi?n Nam K?t Qu? X? S? Mi?n Trung K?t Qu? X? S? Mi?n B?c KQXS Các T?nh KQXS ?i?n Toán X? s? ?i?n toán Mega six/forty five X