BPG致力于知识的发现和传播
Total Visits of This Article
2023 | 总访问次数
排名 国家/地区 数量 占比
1 United States 18 36.7%
2 China 12 24.5%
3 Germany 4 8.2%
4 Japan 3 6.1%
5 Netherlands 2 4.1%
6 Russia 2 4.1%
7 Ukraine 2 4.1%
8 Brazil 1 2%
9 Singapore 1 2%
10 Romania 1 2%
11 Cyprus 1 2%
12 Denmark 1 2%
13 France 1 2%