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 113 59.5%
2 United States 30 15.8%
3 Netherlands 14 7.4%
4 Korea, Republic of 9 4.7%
5 Germany 7 3.7%
6 France 6 3.2%
7 Canada 3 1.6%
8 Australia 2 1.1%
9 Singapore 2 1.1%
10 Taiwan 2 1.1%
11 Sweden 1 0.5%
12 Hong Kong 1 0.5%