BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 49 38.3%
2 United States 27 21.1%
3 Netherlands 21 16.4%
4 Germany 17 13.3%
5 United Kingdom 4 3.1%
6 3 2.3%
7 France 2 1.6%
8 Japan 2 1.6%
9 Korea, Republic of 1 0.8%
10 Russia 1 0.8%
11 Hong Kong 1 0.8%