题目

Foreach blank in the following passage there are four words or phrases marked A, B,C and D. Fill in each blank with the word or phrase that best fits the context.Making choices is hard. That would be whyresearcher Moran Cerf has 1it from his life. As a rule, he always choosesthe second menu item at a restaurant. This is2byhis research in neuroeconomics(神经经济学) (a somewhatnew, divisive field) at Northwestern University. As Business Insider describes,Cerf has extended his ideas--which draw on some controversial ideas in psychology,including ego depletion out--into a piece of advice that观察规律填空：2×4=32-1；3×5=42-1；4×6=52-1；10×12=112-1；那么2002×2004=______-______；______×______=X2-1．