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 62 38.8%
2 United States 46 28.8%
3 Netherlands 24 15%
4 Germany 13 8.1%
5 Canada 4 2.5%
6 United Kingdom 3 1.9%
7 France 2 1.2%
8 Australia 1 0.6%
9 Brazil 1 0.6%
10 New Zealand 1 0.6%
11 Singapore 1 0.6%
12 Sweden 1 0.6%
13 Taiwan 1 0.6%