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 216 63%
2 United States 53 15.5%
3 Germany 35 10.2%
4 Canada 15 4.4%
5 Hong Kong 5 1.5%
6 Japan 4 1.2%
7 Russia 4 1.2%
8 Ireland 3 0.9%
9 Malaysia 2 0.6%
10 Netherlands 2 0.6%
11 Romania 2 0.6%
12 Taiwan 1 0.3%
13 United Kingdom 1 0.3%