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 United States 48 36.4%
2 China 37 28%
3 Germany 15 11.4%
4 Canada 12 9.1%
5 Netherlands 8 6.1%
6 Thailand 4 3%
7 Singapore 3 2.3%
8 Australia 2 1.5%
9 New Zealand 2 1.5%
10 Sweden 1 0.8%