A. 0. 20; B. 3.33; C. 0. 267; D. 2. 667.D

Loveyou2019-12-17  11

问题

选项 A. 0. 20; B. 3.33; C. 0. 267; D. 2. 667.

答案D

解析[img]/upload/tiku/38/8788353_1.jpg[/img]
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