A. 0.667; B. 0. 85; C. 1. 20; D. 0. 56?A

Loveyou2020-05-20  11

问题

选项 A. 0.667;B. 0. 85;C. 1. 20;D. 0. 56?

答案A

解析[img]/upload/tiku/140/337394_1.jpg[/img]
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