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 179 41.3%
2 United States 163 37.6%
3 Germany 38 8.8%
4 Netherlands 23 5.3%
5 Canada 10 2.3%
6 Hong Kong 5 1.2%
7 Singapore 4 0.9%
8 Ireland 3 0.7%
9 Australia 2 0.5%
10 France 2 0.5%
11 Taiwan 2 0.5%
12 Russia 1 0.2%
13 Mauritius 1 0.2%