public static List <CAUHOIDTO> LayDanhSachCauHoiTheoNoiDungVaMucDo(string noiDung, int mucDo)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.LayDanhSachCauHoiTheoNoiDungVaMucDo(noiDung, mucDo));
        }
        public static bool DiChuyenCauHoiRaKhoiBoDeThi(long maDeThi, long maCauHoi)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.DiChuyenCauHoiRaKhoiBoDeThi(maDeThi, maCauHoi));
        }
        public static string CapNhatCauHoi(long maCauHoi, string noiDung, double thangDiem, int mucDo, long maMonHoc)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.CapNhatCauHoi(maCauHoi, noiDung, thangDiem, mucDo, maMonHoc));
        }
        public static bool ThemCauHoiVaoDeThi(long maDeThi, long maCauHoi, double diem)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.ThemCauHoiVaoDeThi(maDeThi, maCauHoi, diem));
        }
        public static bool ThemCauHoi(string noiDung, double thangDiem, int mucDo, long maMonHoc)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.ThemCauHoi(noiDung, thangDiem, mucDo, maMonHoc));
        }
        public static List <CAUHOIDTO> LayDanhSachCauHoiTheoDeThi(long maDeThi)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.LayDanhSacCauHoiTheoDeThi(maDeThi));
        }
        public static List <CAUHOIDTO> LayDanhSachCauHoiTheoMonHocChuaCoTrongDeThi(long maMonHoc, long maDeThi)
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.LayDanhSachCauHoiTheoMonHocChuaCoTrongDeThi(maMonHoc, maDeThi));
        }
        public static List <CAUHOIDTO> LayDanhSachCauHoi()
        {
            CAUHOIDAO c = new CAUHOIDAO();

            return(c.LayDanhSachCauHoi());
        }