6的相反数是-6,-3的倒数是-13,
-6×13-(-13)
=-2+13
=-123;
故答案为:-123.
--- Who ______ it be that is singing in the next room?
--- It _______ be Lucy, but I am not sure.
A.can ; may
B.may ; can
C.can; must
D.must; may
当会计政策变更和会计估计变更难以区分时,企业应当按照会计政策变更予以处理。( )