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 59 36.9%
2 China 31 19.4%
3 Netherlands 27 16.9%
4 Korea, Republic of 8 5%
5 Germany 7 4.4%
6 Canada 6 3.8%
7 France 3 1.9%
8 Australia 2 1.2%
9 Ireland 2 1.2%
10 Russia 2 1.2%
11 Serbia 2 1.2%
12 Thailand 2 1.2%
13 United Kingdom 1 0.6%
14 Viet Nam 1 0.6%
15 Tanzania, United Republic of 1 0.6%
16 Kenya 1 0.6%
17 Malaysia 1 0.6%
18 Botswana 1 0.6%
19 Brazil 1 0.6%
20 Algeria 1 0.6%
21 Indonesia 1 0.6%