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 77 44%
2 United States 42 24%
3 Germany 16 9.1%
4 Turkey 14 8%
5 Netherlands 7 4%
6 Hong Kong 7 4%
7 Korea, Republic of 4 2.3%
8 France 3 1.7%
9 United Kingdom 2 1.1%
10 Norway 1 0.6%
11 Viet Nam 1 0.6%
12 Canada 1 0.6%