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 42 36.5%
2 United States 37 32.2%
3 Germany 12 10.4%
4 Netherlands 5 4.3%
5 United Kingdom 4 3.5%
6 France 3 2.6%
7 India 3 2.6%
8 Korea, Republic of 3 2.6%
9 Hong Kong 2 1.7%
10 Canada 1 0.9%
11 Italy 1 0.9%
12 Japan 1 0.9%
13 Romania 1 0.9%