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 237 64.6%
2 Germany 52 14.2%
3 United States 41 11.2%
4 Canada 18 4.9%
5 India 4 1.1%
6 Hong Kong 3 0.8%
7 Japan 2 0.5%
8 Netherlands 2 0.5%
9 Spain 2 0.5%
10 Sweden 2 0.5%
11 Taiwan 2 0.5%
12 Singapore 1 0.3%
13 Brazil 1 0.3%