中考必刷最值题：√5PA+2√2PB+3PC最小值，难出天际，学霸叹气！
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| MP4 | N/A | 480P | Download |
| MP4 | N/A | 480P | Download |
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| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.5 | Download |
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