BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 42 40.4%
2 China 31 29.8%
3 Japan 6 5.8%
4 Russia 6 5.8%
5 Malaysia 4 3.8%
6 France 4 3.8%
7 Taiwan 4 3.8%
8 Germany 3 2.9%
9 Estonia 1 1%
10 Portugal 1 1%
11 Singapore 1 1%
12 United Kingdom 1 1%