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 34 38.6%
2 United States 19 21.6%
3 Netherlands 14 15.9%
4 Germany 9 10.2%
5 France 3 3.4%
6 India 3 3.4%
7 Spain 2 2.3%
8 Hong Kong 2 2.3%
9 Iran, Islamic Republic of 1 1.1%
10 Chile 1 1.1%