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 140 56.5%
2 United States 48 19.4%
3 Germany 29 11.7%
4 Taiwan 11 4.4%
5 Ukraine 3 1.2%
6 Japan 3 1.2%
7 Russia 3 1.2%
8 Singapore 2 0.8%
9 Spain 2 0.8%
10 United Kingdom 2 0.8%
11 Australia 2 0.8%
12 Switzerland 1 0.4%
13 Malaysia 1 0.4%
14 Ireland 1 0.4%