单选题 What enables some people to get big creative breakthroughs while others only get small and non-creative breakdowns, blaming themselves and society? Are some people "gifted"? Are there other factors (21) work--factors that we have more control over than we think? While nobody can deny the (请作答此空) that some people seem to be blessed with particular creativity, research shows that anyone can (23) their chances of coming up with new and original ideas (24) they would only engage themselves more in the process of (25) . It' s the old Thomas Edison thing about "discovery (26) 99 percent perspiration (汗水) and 1 percent inspiration. " (27) , the studies prove this:great creative breakthroughs usually happen only (28) intense periods of struggle. It is sustained effort towards a specific goal (29) eventually prepares for great creative insights. This kind of sustained effort does not always (30) immediate results, a fact that not only separates the innovators (革新者) from non-innovators, but (31) leads some people to conclude that it is just not (32) for them. "Maybe I should have gone to medical school like my mother wanted," they wonder when the breakthrough is (33) to be found. Alas, one forgets during inevitable encounters (34) self-doubt,that the big surprise is never (35) . Indeed,it can happen at any time and place.