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 145 54.5%
2 United States 55 20.7%
3 Germany 40 15%
4 Taiwan 6 2.3%
5 Hong Kong 4 1.5%
6 Ukraine 3 1.1%
7 Turkey 2 0.8%
8 2 0.8%
9 Austria 2 0.8%
10 Canada 2 0.8%
11 Romania 2 0.8%
12 Belgium 1 0.4%
13 Japan 1 0.4%
14 Moldova, Republic of 1 0.4%