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 222 63.1%
2 United States 46 13.1%
3 Germany 44 12.5%
4 Hong Kong 10 2.8%
5 Canada 6 1.7%
6 Netherlands 4 1.1%
7 Singapore 4 1.1%
8 Taiwan 3 0.9%
9 Russia 2 0.6%
10 Sweden 2 0.6%
11 Finland 2 0.6%
12 India 2 0.6%
13 Japan 2 0.6%
14 Australia 1 0.3%
15 Norway 1 0.3%
16 Romania 1 0.3%