BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 45 54.2%
2 China 14 16.9%
3 Germany 10 12%
4 France 5 6%
5 Netherlands 3 3.6%
6 Republic of Korea 2 2.4%
7 Thailand 1 1.2%
8 Hong Kong 1 1.2%
9 Australia 1 1.2%
10 Finland 1 1.2%