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 312 51.1%
2 United States 140 22.9%
3 Netherlands 61 10%
4 Germany 60 9.8%
5 Canada 14 2.3%
6 Czech Republic 5 0.8%
7 France 5 0.8%
8 India 4 0.7%
9 United Kingdom 4 0.7%
10 Singapore 2 0.3%
11 Hong Kong 2 0.3%
12 Turkey 1 0.2%
13 Korea, Republic of 1 0.2%