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 United States 70 35.7%
2 China 64 32.7%
3 Germany 16 8.2%
4 Netherlands 12 6.1%
5 Hong Kong 11 5.6%
6 Canada 6 3.1%
7 United Kingdom 6 3.1%
8 Taiwan 3 1.5%
9 Japan 2 1%
10 Australia 2 1%
11 France 2 1%
12 India 1 0.5%
13 Portugal 1 0.5%