The concept of staff training. Increasing the competence and increase the statistics.
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- 大图:4121 × 2638 像素·34.89 cm × 22.34 cm·300dpi·JPG
- 中图:1000 × 640 像素·35.28 cm × 22.58 cm·72dpi·JPG
- 小图:500 × 320 像素·17.64 cm × 11.29 cm·72dpi·JPG