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 28 36.8%
2 China 17 22.4%
3 Germany 12 15.8%
4 Japan 5 6.6%
5 Netherlands 3 3.9%
6 Australia 3 3.9%
7 Canada 2 2.6%
8 Hong Kong 2 2.6%
9 Republic of Korea 2 2.6%
10 Singapore 1 1.3%
11 Taiwan 1 1.3%