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 205 57.3%
2 United States 58 16.2%
3 Germany 39 10.9%
4 Canada 29 8.1%
5 Hong Kong 9 2.5%
6 Korea, Republic of 5 1.4%
7 Netherlands 3 0.8%
8 Spain 3 0.8%
9 Taiwan 3 0.8%
10 Switzerland 2 0.6%
11 Brazil 1 0.3%
12 France 1 0.3%