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 453 80.2%
2 United States 45 8%
3 Germany 19 3.4%
4 Hong Kong 19 3.4%
5 Taiwan 10 1.8%
6 5 0.9%
7 Japan 3 0.5%
8 Ukraine 2 0.4%
9 United Kingdom 2 0.4%
10 Korea, Republic of 1 0.2%
11 Netherlands 1 0.2%
12 Portugal 1 0.2%
13 Russia 1 0.2%
14 India 1 0.2%
15 Estonia 1 0.2%
16 France 1 0.2%