0.0495×2500+49.5×2.4+51×4.95的值是: A4.9

Freeti2019-12-17  15

问题 0.0495×2500+49.5×2.4+51×4.95的值是:A4.95B49.5C495D4950

选项

答案C

解析[img]/upload/tiku/284/2959491_1.png[/img]
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