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 325 70.7%
2 United States 42 9.1%
3 Germany 34 7.4%
4 Canada 28 6.1%
5 Netherlands 6 1.3%
6 Russia 6 1.3%
7 Taiwan 5 1.1%
8 Hong Kong 5 1.1%
9 Ireland 2 0.4%
10 Italy 2 0.4%
11 Singapore 2 0.4%
12 Mauritius 1 0.2%
13 1 0.2%
14 France 1 0.2%