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 48 34.3%
2 China 46 32.9%
3 Netherlands 20 14.3%
4 Germany 9 6.4%
5 France 6 4.3%
6 Singapore 3 2.1%
7 Canada 2 1.4%
8 Russia 2 1.4%
9 India 1 0.7%
10 Malaysia 1 0.7%
11 Czech Republic 1 0.7%
12 Thailand 1 0.7%