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 40 46%
2 United States 15 17.2%
3 Germany 13 14.9%
4 Taiwan 5 5.7%
5 Romania 3 3.4%
6 Japan 2 2.3%
7 Canada 2 2.3%
8 Australia 1 1.1%
9 France 1 1.1%
10 Republic of Korea 1 1.1%
11 Hong Kong 1 1.1%
12 Singapore 1 1.1%
13 Switzerland 1 1.1%
14 United Kingdom 1 1.1%