A:kept u
B:kept o
C:kept to
D:kept from
①∠ADG=∠AFG;②四边形DEFG是菱形;③DG2= 12 AE•EG;④若AB=4,AD=5,则CE=1.
(1)-36×56-49(2)-1×-5÷-32+2×-5(3)-42×-34+30÷-6(4)-14-1-12÷3×3--32