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 52 46.4%
2 United States 16 14.3%
3 France 12 10.7%
4 Netherlands 12 10.7%
5 Germany 7 6.2%
6 Korea, Republic of 4 3.6%
7 Turkey 3 2.7%
8 India 2 1.8%
9 Japan 2 1.8%
10 United Kingdom 1 0.9%
11 Hong Kong 1 0.9%