A.(1,2) B.(1,0.5) C.(2,0.5) D.(2,1)C

书海库2019-12-17  67

问题

选项 A.(1,2)B.(1,0.5)C.(2,0.5)D.(2,1)

答案C

解析[img]/upload/tiku/212/5278346_1.jpg[/img]
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