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 180 52.5%
2 United States 68 19.8%
3 Netherlands 41 12%
4 Germany 31 9%
5 Korea, Republic of 5 1.5%
6 Taiwan 4 1.2%
7 Ukraine 2 0.6%
8 United Kingdom 2 0.6%
9 Italy 2 0.6%
10 Australia 2 0.6%
11 Canada 2 0.6%
12 Hong Kong 2 0.6%
13 Ireland 1 0.3%
14 Turkey 1 0.3%