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 203 63.2%
2 United States 55 17.1%
3 Germany 44 13.7%
4 Netherlands 5 1.6%
5 Singapore 3 0.9%
6 Norway 2 0.6%
7 Hong Kong 2 0.6%
8 Canada 2 0.6%
9 United Kingdom 2 0.6%
10 Australia 1 0.3%
11 Chile 1 0.3%
12 Switzerland 1 0.3%