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 45 51.7%
2 France 11 12.6%
3 Netherlands 10 11.5%
4 United States 9 10.3%
5 Germany 7 8%
6 Singapore 2 2.3%
7 Czech Republic 1 1.1%
8 India 1 1.1%
9 Moldova, Republic of 1 1.1%