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 298 58.7%
2 United States 141 27.8%
3 Germany 38 7.5%
4 Taiwan 13 2.6%
5 Singapore 3 0.6%
6 Belgium 3 0.6%
7 Estonia 2 0.4%
8 Japan 2 0.4%
9 Netherlands 2 0.4%
10 Russia 2 0.4%
11 United Kingdom 2 0.4%
12 Israel 1 0.2%
13 Australia 1 0.2%