BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 38 46.3%
2 Germany 15 18.3%
3 United States 8 9.8%
4 France 8 9.8%
5 Netherlands 7 8.5%
6 Hong Kong 2 2.4%
7 Canada 2 2.4%
8 Australia 1 1.2%
9 Japan 1 1.2%