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 217 47.2%
2 United States 167 36.3%
3 Germany 39 8.5%
4 Hong Kong 6 1.3%
5 Japan 6 1.3%
6 Taiwan 5 1.1%
7 Russia 4 0.9%
8 Korea, Republic of 3 0.7%
9 India 3 0.7%
10 South Africa 2 0.4%
11 Sweden 2 0.4%
12 Ukraine 2 0.4%
13 Canada 2 0.4%
14 Malaysia 1 0.2%
15 Mexico 1 0.2%