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 109 54.5%
2 United States 44 22%
3 Netherlands 14 7%
4 Hong Kong 9 4.5%
5 Germany 6 3%
6 Taiwan 4 2%
7 United Kingdom 4 2%
8 Singapore 3 1.5%
9 France 3 1.5%
10 Poland 2 1%
11 Algeria 1 0.5%
12 Australia 1 0.5%