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 75 32.3%
2 United States 75 32.3%
3 Korea, Republic of 20 8.6%
4 Netherlands 14 6%
5 Lithuania 10 4.3%
6 Togo 9 3.9%
7 Germany 8 3.4%
8 France 4 1.7%
9 Norway 3 1.3%
10 Romania 2 0.9%
11 Russia 2 0.9%
12 Malaysia 2 0.9%
13 Canada 2 0.9%
14 Taiwan 2 0.9%
15 South Africa 1 0.4%
16 Switzerland 1 0.4%
17 India 1 0.4%
18 Ireland 1 0.4%