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 425 48.9%
2 United States 152 17.5%
3 Netherlands 106 12.2%
4 Germany 63 7.2%
5 France 55 6.3%
6 Canada 22 2.5%
7 Russia 22 2.5%
8 Korea, Republic of 8 0.9%
9 Hong Kong 5 0.6%
10 India 3 0.3%
11 Norway 3 0.3%
12 Japan 2 0.2%
13 Guatemala 2 0.2%
14 Australia 1 0.1%