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 United States 24 43.6%
2 China 10 18.2%
3 Germany 10 18.2%
4 Netherlands 4 7.3%
5 Republic of Korea 2 3.6%
6 Singapore 1 1.8%
7 Norway 1 1.8%
8 Portugal 1 1.8%
9 Malaysia 1 1.8%
10 France 1 1.8%