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 59 41.3%
2 United States 34 23.8%
3 Netherlands 14 9.8%
4 Sweden 8 5.6%
5 Korea, Republic of 7 4.9%
6 Russia 7 4.9%
7 Germany 4 2.8%
8 Hong Kong 2 1.4%
9 New Zealand 2 1.4%
10 Canada 2 1.4%
11 Ecuador 2 1.4%
12 Czech Republic 1 0.7%
13 Ukraine 1 0.7%