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 144 53.3%
2 Germany 42 15.6%
3 United States 37 13.7%
4 Netherlands 25 9.3%
5 Canada 4 1.5%
6 Hong Kong 3 1.1%
7 India 3 1.1%
8 Ireland 2 0.7%
9 Australia 2 0.7%
10 Norway 2 0.7%
11 Singapore 2 0.7%
12 Taiwan 2 0.7%
13 Brazil 1 0.4%
14 Chile 1 0.4%