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 73 58.4%
2 United States 19 15.2%
3 Germany 8 6.4%
4 Netherlands 8 6.4%
5 India 4 3.2%
6 Taiwan 3 2.4%
7 Russia 2 1.6%
8 Korea, Republic of 2 1.6%
9 Brazil 2 1.6%
10 Canada 1 0.8%
11 France 1 0.8%
12 Peru 1 0.8%
13 United Kingdom 1 0.8%