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 173 58.2%
2 Germany 44 14.8%
3 United States 38 12.8%
4 Hong Kong 10 3.4%
5 Russia 5 1.7%
6 Ukraine 5 1.7%
7 Canada 4 1.3%
8 Taiwan 4 1.3%
9 Spain 3 1%
10 Japan 3 1%
11 France 3 1%
12 Austria 3 1%
13 Belarus 2 0.7%