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 44 49.4%
2 United States 28 31.5%
3 Netherlands 4 4.5%
4 Republic of Korea 4 4.5%
5 France 2 2.2%
6 Canada 2 2.2%
7 Germany 1 1.1%
8 Hong Kong 1 1.1%
9 Japan 1 1.1%
10 Singapore 1 1.1%
11 Sweden 1 1.1%