北師大初一數(shù)學七年級上冊

點一下: https://www.bilibili.com/video/BV1kC4y1a7Cd?t=806.3 https://www.bilibili.com/video/BV1sz411v79k?t=123.9&p=16
?
2-11科學計數(shù)法 P16 - 02:22
?標簽:
點一下: https://www.bilibili.com/video/BV1kC4y1a7Cd?t=806.3 https://www.bilibili.com/video/BV1sz411v79k?t=123.9&p=16