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 25 26.6%
2 Germany 18 19.1%
3 Netherlands 15 16%
4 China 11 11.7%
5 Brunei Darussalam 4 4.3%
6 Denmark 3 3.2%
7 Tunisia 3 3.2%
8 United Kingdom 2 2.1%
9 Bangladesh 2 2.1%
10 France 2 2.1%
11 Chile 2 2.1%
12 Poland 2 2.1%
13 South Africa 2 2.1%
14 Taiwan 1 1.1%
15 Korea, Republic of 1 1.1%
16 Malaysia 1 1.1%