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题目内容
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.
- Arepeats
- Bimprovises
- Cornaments
- Dcorrects
- Eharmonizes
B显示答案
以上解析由 考满分老师提供。