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 187 55.2%
2 United States 76 22.4%
3 Germany 43 12.7%
4 Hong Kong 7 2.1%
5 Taiwan 7 2.1%
6 Netherlands 5 1.5%
7 France 4 1.2%
8 Canada 2 0.6%
9 Turkey 2 0.6%
10 Japan 2 0.6%
11 Australia 1 0.3%
12 Russia 1 0.3%
13 Singapore 1 0.3%
14 India 1 0.3%