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 233 57.8%
2 United States 68 16.9%
3 Germany 34 8.4%
4 Netherlands 25 6.2%
5 Taiwan 13 3.2%
6 Hong Kong 13 3.2%
7 Australia 6 1.5%
8 Canada 3 0.7%
9 United Kingdom 3 0.7%
10 France 2 0.5%
11 Viet Nam 2 0.5%
12 Korea, Republic of 1 0.2%