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 190 59.7%
2 United States 63 19.8%
3 Germany 27 8.5%
4 Canada 13 4.1%
5 Taiwan 7 2.2%
6 Finland 3 0.9%
7 Belgium 3 0.9%
8 India 2 0.6%
9 Malaysia 2 0.6%
10 Russia 2 0.6%
11 Spain 2 0.6%
12 Poland 1 0.3%
13 Ireland 1 0.3%
14 Hong Kong 1 0.3%
15 Belarus 1 0.3%