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 44 59.5%
2 United States 9 12.2%
3 Netherlands 8 10.8%
4 Germany 6 8.1%
5 Hong Kong 3 4.1%
6 Malaysia 1 1.4%
7 Singapore 1 1.4%
8 Armenia 1 1.4%
9 Canada 1 1.4%