His ______ brain has worked away on the idea of a universal cure.[2006]A．richB．quickC．prod

His ______ brain has worked away on the idea of a universal cure.A．richB．quickC．productive

Tony has not the least ______ of giving up his research work.A．intentionB．interestC．wishD．

He has______himself to his work and become just a writing machine.A．dedicatedB．dictatedC．d

His______ brain has worked away on the idea of a universal cure. （2006年考试真题）A．richB．q

She racked her brains trying to _____ the maths problem. A. work up B. work down

Mathematician have _____ computers to copy the way the brain works.A. tried using