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 226 59.3%
2 United States 72 18.9%
3 Germany 34 8.9%
4 Canada 13 3.4%
5 Hong Kong 6 1.6%
6 India 4 1%
7 Australia 3 0.8%
8 Korea, Republic of 3 0.8%
9 Russia 3 0.8%
10 Singapore 3 0.8%
11 Taiwan 3 0.8%
12 United Kingdom 2 0.5%
13 Austria 2 0.5%
14 Ecuador 2 0.5%
15 Japan 2 0.5%
16 Kazakhstan 1 0.3%
17 Brazil 1 0.3%
18 Malaysia 1 0.3%