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 199 46.4%
2 United States 149 34.7%
3 Germany 37 8.6%
4 Canada 10 2.3%
5 Malaysia 8 1.9%
6 Hong Kong 5 1.2%
7 Brazil 4 0.9%
8 Singapore 4 0.9%
9 Taiwan 4 0.9%
10 Russia 3 0.7%
11 France 2 0.5%
12 Netherlands 2 0.5%
13 Italy 1 0.2%
14 Sweden 1 0.2%