求教一道三空题

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There is nothing that (i) ______ scientists more than having an old problem in their field solved by someone from outside. If you doubt this (ii) ______, just think about the (iii) ______ reaction of paleontologists to the hypothesis of Luis Alvarez—a physicist—and Walter Alvarez—a geologist—that the extinction of the dinosaurs was caused by the impact of a large meteor on the surface of the planet. Blank (i) Blank (ii) Blank (iii) (A) amazes (D) exposition (G) contemptuous (B) pleases (E) objurgation (H) indifferent (C) nettles (F) observation (I) insincere

答案CFG  可是第二个空是怎么分析的呢  完全没头绪