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 183 57.5%
2 United States 75 23.6%
3 Germany 33 10.4%
4 Russia 5 1.6%
5 Hong Kong 4 1.3%
6 India 3 0.9%
7 Singapore 3 0.9%
8 Slovakia 2 0.6%
9 Switzerland 2 0.6%
10 Luxembourg 2 0.6%
11 Mexico 2 0.6%
12 Philippines 2 0.6%
13 Romania 1 0.3%
14 Korea, Republic of 1 0.3%