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 54 56.2%
2 United States 20 20.8%
3 Germany 9 9.4%
4 Netherlands 4 4.2%
5 Romania 3 3.1%
6 Singapore 1 1%
7 United Kingdom 1 1%
8 Republic of Korea 1 1%
9 Hong Kong 1 1%
10 Australia 1 1%
11 Canada 1 1%