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 63 72.4%
2 United States 9 10.3%
3 Germany 4 4.6%
4 Hong Kong 4 4.6%
5 Malaysia 2 2.3%
6 Russia 1 1.1%
7 Austria 1 1.1%
8 Brazil 1 1.1%
9 Japan 1 1.1%
10 Lithuania 1 1.1%