BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 288 62.2%
2 United States 54 11.7%
3 Germany 36 7.8%
4 Canada 25 5.4%
5 Taiwan 21 4.5%
6 Hong Kong 16 3.5%
7 South Africa 4 0.9%
8 Macao 4 0.9%
9 Russia 3 0.6%
10 Singapore 2 0.4%
11 Sweden 2 0.4%
12 France 2 0.4%
13 Czech Republic 1 0.2%
14 India 1 0.2%
15 Japan 1 0.2%
16 Korea, Republic of 1 0.2%
17 Mexico 1 0.2%
18 Netherlands 1 0.2%