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 United States 23 29.1%
2 China 21 26.6%
3 Netherlands 15 19%
4 Russia 4 5.1%
5 Malaysia 4 5.1%
6 France 3 3.8%
7 Canada 3 3.8%
8 Hong Kong 2 2.5%
9 United Kingdom 2 2.5%
10 New Zealand 1 1.3%
11 Germany 1 1.3%