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 United States 91 50.8%
2 China 40 22.3%
3 Netherlands 14 7.8%
4 Germany 6 3.4%
5 Hong Kong 4 2.2%
6 Canada 4 2.2%
7 New Zealand 4 2.2%
8 Korea, Republic of 3 1.7%
9 Malaysia 3 1.7%
10 Taiwan 2 1.1%
11 Bangladesh 2 1.1%
12 France 1 0.6%
13 Ireland 1 0.6%
14 Japan 1 0.6%
15 Macao 1 0.6%
16 Serbia 1 0.6%
17 Singapore 1 0.6%