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 33 45.2%
2 United States 26 35.6%
3 Germany 8 11%
4 Hong Kong 1 1.4%
5 Iran, Islamic Republic of 1 1.4%
6 Japan 1 1.4%
7 Philippines 1 1.4%
8 Singapore 1 1.4%
9 Canada 1 1.4%