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 112 59.9%
2 United States 32 17.1%
3 Germany 19 10.2%
4 Hong Kong 6 3.2%
5 Taiwan 4 2.1%
6 Canada 4 2.1%
7 United Kingdom 2 1.1%
8 Czech Republic 2 1.1%
9 France 1 0.5%
10 Ukraine 1 0.5%
11 Mauritania 1 0.5%
12 Netherlands 1 0.5%
13 Poland 1 0.5%
14 Portugal 1 0.5%