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 82 71.3%
2 United States 16 13.9%
3 Netherlands 7 6.1%
4 Lao People's Democratic Republic 3 2.6%
5 Canada 3 2.6%
6 France 2 1.7%
7 Australia 1 0.9%
8 Norway 1 0.9%