∠AOD:∠BOD=2:1,
∠AOD+∠BOD=180°,
=> ∠AOD=120°,∠BOD=60°;
直线AB、CD交于点O,
=> ∠ AOC=∠BOD=60°;
=> ∠COE=∠BOC+∠BOE=∠AOD+∠BOD/2=120°+60°/2=150°