BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 28 25.5%
2 China 25 22.7%
3 Netherlands 21 19.1%
4 Germany 13 11.8%
5 France 7 6.4%
6 5 4.5%
7 Canada 3 2.7%
8 Viet Nam 2 1.8%
9 Hong Kong 1 0.9%
10 Japan 1 0.9%
11 Australia 1 0.9%
12 Norway 1 0.9%
13 Singapore 1 0.9%
14 Sweden 1 0.9%