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 49 52.1%
2 United States 16 17%
3 Netherlands 9 9.6%
4 France 7 7.4%
5 Germany 5 5.3%
6 Hong Kong 2 2.1%
7 India 2 2.1%
8 Czech Republic 2 2.1%
9 Singapore 1 1.1%
10 Canada 1 1.1%