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 169 48.8%
2 United States 99 28.6%
3 Germany 26 7.5%
4 Canada 10 2.9%
5 Netherlands 10 2.9%
6 Hong Kong 8 2.3%
7 Japan 6 1.7%
8 Korea, Republic of 4 1.2%
9 Russia 3 0.9%
10 Taiwan 2 0.6%
11 Turkey 2 0.6%
12 United Kingdom 2 0.6%
13 Australia 2 0.6%
14 Italy 2 0.6%
15 Mauritius 1 0.3%