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 251 61.8%
2 United States 62 15.3%
3 Germany 34 8.4%
4 Netherlands 21 5.2%
5 Canada 10 2.5%
6 Hong Kong 6 1.5%
7 Japan 5 1.2%
8 Russia 5 1.2%
9 3 0.7%
10 France 3 0.7%
11 Israel 2 0.5%
12 Moldova, Republic of 1 0.2%
13 Singapore 1 0.2%
14 Taiwan 1 0.2%
15 Romania 1 0.2%