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 United States 57 43.8%
2 China 24 18.5%
3 Netherlands 9 6.9%
4 Australia 7 5.4%
5 Canada 7 5.4%
6 Germany 6 4.6%
7 Sweden 6 4.6%
8 Hong Kong 5 3.8%
9 Singapore 2 1.5%
10 Taiwan 1 0.8%
11 Nigeria 1 0.8%
12 Romania 1 0.8%
13 Russia 1 0.8%
14 Japan 1 0.8%
15 Malaysia 1 0.8%
16 France 1 0.8%