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 62 36.9%
2 United States 50 29.8%
3 Netherlands 21 12.5%
4 Hong Kong 8 4.8%
5 Germany 7 4.2%
6 Korea, Republic of 4 2.4%
7 Taiwan 4 2.4%
8 Norway 3 1.8%
9 Russia 3 1.8%
10 Singapore 3 1.8%
11 United Kingdom 2 1.2%
12 Italy 1 0.6%