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 149 38%
2 China 95 24.2%
3 Germany 43 11%
4 Netherlands 43 11%
5 France 23 5.9%
6 Hong Kong 10 2.6%
7 Portugal 7 1.8%
8 Canada 7 1.8%
9 4 1%
10 Taiwan 3 0.8%
11 Ukraine 2 0.5%
12 Czech Republic 2 0.5%
13 Korea, Republic of 2 0.5%
14 Russia 1 0.3%
15 United Kingdom 1 0.3%