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 276 72.8%
2 United States 40 10.6%
3 Germany 38 10%
4 Hong Kong 7 1.8%
5 Taiwan 5 1.3%
6 Japan 4 1.1%
7 Canada 2 0.5%
8 Portugal 2 0.5%
9 Russia 2 0.5%
10 Slovenia 1 0.3%
11 Korea, Republic of 1 0.3%
12 Poland 1 0.3%