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 38.5%
2 United States 17 21.8%
3 Germany 14 17.9%
4 Netherlands 6 7.7%
5 Romania 3 3.8%
6 India 3 3.8%
7 Korea, Republic of 1 1.3%
8 Hong Kong 1 1.3%
9 Saudi Arabia 1 1.3%
10 Spain 1 1.3%
11 Republic of Korea 1 1.3%