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While scientists dismiss as fanciful the idea of sudden changes in a genetic cod
While scientists dismiss as fanciful the idea of sudden changes in a genetic cod
游客
2025-02-20
9
管理
问题
While scientists dismiss as fanciful the idea of sudden changes in a genetic code (spontaneous mutation), it is possible that nature, like some master musician, _____ on occasion, departing from the expected or predictable.
选项
A、repeats
B、improvises
C、ornaments
D、corrects
E、harmonizes
答案
B
解析
- 方程等号:逗号,前后同义重复。
- 强词和对应:逗号前后取同,逗号后面说和那些我们期待和预测的事物相背离,所以空格应该体现“与常规相反”或者“无法预测”。repeat复述,improvise即兴演出,ornament装饰,correct更正,harmonize和谐。improvise的释义是to speak or perform without preparation。答案选B。
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