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 375 73.1%
2 United States 62 12.1%
3 Germany 38 7.4%
4 Canada 15 2.9%
5 Hong Kong 3 0.6%
6 Russia 3 0.6%
7 South Africa 3 0.6%
8 Taiwan 3 0.6%
9 Uzbekistan 2 0.4%
10 Singapore 2 0.4%
11 Korea, Republic of 2 0.4%
12 Croatia 2 0.4%
13 France 1 0.2%
14 Brazil 1 0.2%
15 Ukraine 1 0.2%