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 68 51.9%
2 United States 16 12.2%
3 France 14 10.7%
4 Netherlands 12 9.2%
5 Germany 10 7.6%
6 Italy 3 2.3%
7 Canada 3 2.3%
8 Korea, Republic of 2 1.5%
9 Brazil 1 0.8%
10 Czech Republic 1 0.8%
11 New Zealand 1 0.8%