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 United States 350 54.7%
2 China 149 23.3%
3 Germany 55 8.6%
4 Netherlands 36 5.6%
5 Canada 13 2%
6 United Kingdom 11 1.7%
7 Brazil 10 1.6%
8 Hong Kong 4 0.6%
9 India 2 0.3%
10 Ecuador 2 0.3%
11 New Zealand 2 0.3%
12 Thailand 2 0.3%
13 Ukraine 2 0.3%
14 France 1 0.2%
15 Italy 1 0.2%