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 119 52.7%
2 United States 51 22.6%
3 Germany 16 7.1%
4 Hong Kong 7 3.1%
5 Netherlands 6 2.7%
6 Portugal 5 2.2%
7 United Kingdom 5 2.2%
8 Russia 3 1.3%
9 Singapore 3 1.3%
10 Taiwan 3 1.3%
11 3 1.3%
12 Canada 2 0.9%
13 Czech Republic 1 0.4%
14 Ukraine 1 0.4%
15 Japan 1 0.4%