下面两组数据,加权后的参数是多少?Ax05B7.3x050.20237.5x050.20238.2x050.20238.9x050.202310.4x050.202310.9x050.202311.8x050.202312.1x050.202312.3x050.202312.6x050.202313.8x050.202314.4x050.20234.4x050.202314.8x050.20234 |
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