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 138 52.5%
2 United States 56 21.3%
3 Germany 32 12.2%
4 Korea, Republic of 10 3.8%
5 Russia 5 1.9%
6 Taiwan 4 1.5%
7 Sweden 3 1.1%
8 Canada 3 1.1%
9 Hong Kong 3 1.1%
10 Japan 2 0.8%
11 South Africa 2 0.8%
12 Singapore 1 0.4%
13 Turkey 1 0.4%
14 United Kingdom 1 0.4%
15 Albania 1 0.4%
16 Macao 1 0.4%