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 43 45.3%
2 United States 30 31.6%
3 India 7 7.4%
4 Finland 5 5.3%
5 Republic of Korea 4 4.2%
6 Germany 2 2.1%
7 Romania 1 1.1%
8 France 1 1.1%
9 Korea, Republic of 1 1.1%
10 Netherlands 1 1.1%