BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 530 84.3%
2 China 40 6.4%
3 United States 36 5.7%
4 Germany 9 1.4%
5 France 6 1%
6 Netherlands 3 0.5%
7 Malaysia 2 0.3%
8 Norway 1 0.2%
9 Switzerland 1 0.2%
10 Hong Kong 1 0.2%