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 42 39.3%
2 United States 40 37.4%
3 Germany 11 10.3%
4 Netherlands 6 5.6%
5 Canada 2 1.9%
6 Algeria 1 0.9%
7 France 1 0.9%
8 Hong Kong 1 0.9%
9 Ireland 1 0.9%
10 Korea, Republic of 1 0.9%
11 Republic of Korea 1 0.9%