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 51 50.5%
2 United States 16 15.8%
3 Netherlands 9 8.9%
4 Germany 8 7.9%
5 Singapore 6 5.9%
6 United Kingdom 2 2%
7 Hong Kong 2 2%
8 France 2 2%
9 Malaysia 2 2%
10 Canada 1 1%
11 Czech Republic 1 1%
12 India 1 1%