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1. Basic Education Research Institute of Zibo, Zibo 255000, China;
2. Shandong Zibo No. 6 Middle School, Zibo 255300, China;
3. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Ji’nan 250014, China;
4. Gaoqing No. 1 Middle School, Zibo 256300, China |
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