BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 134 65.4%
2 United States 51 24.9%
3 Germany 7 3.4%
4 Canada 4 2%
5 Singapore 2 1%
6 Czech Republic 2 1%
7 Hong Kong 2 1%
8 Italy 2 1%
9 Moldova, Republic of 1 0.5%