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 China 30 42.9%
2 United States 18 25.7%
3 Netherlands 5 7.1%
4 Germany 4 5.7%
5 Belgium 3 4.3%
6 Australia 2 2.9%
7 France 2 2.9%
8 Taiwan 2 2.9%
9 Hong Kong 1 1.4%
10 India 1 1.4%
11 Brazil 1 1.4%
12 Estonia 1 1.4%