BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 50 45.9%
2 United States 18 16.5%
3 Germany 13 11.9%
4 Netherlands 6 5.5%
5 Canada 6 5.5%
6 Australia 3 2.8%
7 Hong Kong 3 2.8%
8 India 3 2.8%
9 Japan 2 1.8%
10 South Africa 2 1.8%
11 Spain 2 1.8%
12 United Kingdom 1 0.9%