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 96 66.2%
2 United States 18 12.4%
3 Germany 12 8.3%
4 Netherlands 9 6.2%
5 Hong Kong 4 2.8%
6 Romania 2 1.4%
7 Canada 2 1.4%
8 Slovakia 1 0.7%
9 France 1 0.7%