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 185 59.5%
2 United States 61 19.6%
3 Germany 36 11.6%
4 India 8 2.6%
5 Japan 3 1%
6 Mexico 3 1%
7 Netherlands 3 1%
8 Taiwan 3 1%
9 Canada 3 1%
10 France 2 0.6%
11 Russia 2 0.6%
12 Sweden 1 0.3%
13 Ukraine 1 0.3%