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 416 51.5%
2 United States 167 20.7%
3 Netherlands 109 13.5%
4 Germany 65 8.1%
5 Canada 20 2.5%
6 Hong Kong 9 1.1%
7 Australia 4 0.5%
8 France 4 0.5%
9 Singapore 4 0.5%
10 Taiwan 2 0.2%
11 United Kingdom 2 0.2%
12 Japan 2 0.2%
13 Malaysia 1 0.1%
14 Armenia 1 0.1%
15 Finland 1 0.1%