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 China 35 38.9%
2 United States 33 36.7%
3 Brazil 4 4.4%
4 Russia 4 4.4%
5 Singapore 4 4.4%
6 United Kingdom 3 3.3%
7 Hong Kong 2 2.2%
8 Iran, Islamic Republic of 2 2.2%
9 Malaysia 1 1.1%
10 Pakistan 1 1.1%
11 Germany 1 1.1%