BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 24 32.4%
2 United States 19 25.7%
3 France 7 9.5%
4 Germany 7 9.5%
5 Netherlands 6 8.1%
6 5 6.8%
7 Australia 2 2.7%
8 Norway 2 2.7%
9 India 1 1.4%
10 Czech Republic 1 1.4%