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 35 30.4%
2 China 25 21.7%
3 Netherlands 21 18.3%
4 France 7 6.1%
5 Canada 5 4.3%
6 Germany 4 3.5%
7 Czech Republic 4 3.5%
8 Russia 3 2.6%
9 Hong Kong 3 2.6%
10 India 2 1.7%
11 Spain 2 1.7%
12 Thailand 1 0.9%
13 United Kingdom 1 0.9%
14 Malaysia 1 0.9%
15 Singapore 1 0.9%