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 202 46.2%
2 United States 149 34.1%
3 Germany 33 7.6%
4 Canada 20 4.6%
5 Taiwan 11 2.5%
6 Japan 6 1.4%
7 Australia 4 0.9%
8 Hong Kong 3 0.7%
9 Korea, Republic of 2 0.5%
10 Singapore 2 0.5%
11 United Kingdom 1 0.2%
12 Latvia 1 0.2%
13 Italy 1 0.2%
14 Denmark 1 0.2%
15 France 1 0.2%