1950-07-Study.png (762 × 554 pixels, file size: 754 KB, MIME type: image/png)
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current | 15:03, 26 May 2014 | ![]() | 762 × 554 (754 KB) | Walter Grassroot | {{Information |Description=全国科学家、工程师努力学习新技能,1950年7月的《人民画报》。 |Source=1950年7月的《人民画报》 |Date=1950 |Author=《人民画报》 |Permission={{PD-China}} |other_versions= }} [[Category:195... |
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