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 151 40.7%
2 United States 135 36.4%
3 Germany 36 9.7%
4 Canada 16 4.3%
5 Taiwan 8 2.2%
6 Turkey 8 2.2%
7 Hong Kong 7 1.9%
8 Netherlands 2 0.5%
9 Singapore 2 0.5%
10 Australia 2 0.5%
11 Croatia 2 0.5%
12 France 1 0.3%
13 United Kingdom 1 0.3%