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 41 38.3%
2 United States 25 23.4%
3 Germany 11 10.3%
4 Netherlands 9 8.4%
5 United Kingdom 4 3.7%
6 Czech Republic 3 2.8%
7 France 3 2.8%
8 Korea, Republic of 3 2.8%
9 Macao 3 2.8%
10 India 2 1.9%
11 Canada 1 0.9%
12 Hong Kong 1 0.9%
13 Romania 1 0.9%