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 206 70.1%
2 United States 50 17%
3 Germany 18 6.1%
4 Netherlands 7 2.4%
5 Hong Kong 5 1.7%
6 Taiwan 4 1.4%
7 Turkey 2 0.7%
8 Moldova, Republic of 1 0.3%
9 France 1 0.3%