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 66 46.5%
2 China 29 20.4%
3 Germany 13 9.2%
4 Singapore 9 6.3%
5 Netherlands 5 3.5%
6 Korea, Republic of 4 2.8%
7 Canada 4 2.8%
8 Australia 2 1.4%
9 France 2 1.4%
10 Malaysia 2 1.4%
11 Norway 2 1.4%
12 United Kingdom 2 1.4%
13 Philippines 1 0.7%
14 Ireland 1 0.7%