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 166 46.1%
2 United States 121 33.6%
3 Germany 23 6.4%
4 Netherlands 12 3.3%
5 Taiwan 7 1.9%
6 Hong Kong 7 1.9%
7 Ireland 4 1.1%
8 Malaysia 4 1.1%
9 Mexico 3 0.8%
10 Italy 2 0.6%
11 Ukraine 2 0.6%
12 United Kingdom 2 0.6%
13 Canada 2 0.6%
14 Romania 1 0.3%
15 Russia 1 0.3%
16 Singapore 1 0.3%
17 Japan 1 0.3%
18 India 1 0.3%