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 45 47.4%
2 China 21 22.1%
3 Germany 11 11.6%
4 Netherlands 4 4.2%
5 Taiwan 4 4.2%
6 United Kingdom 4 4.2%
7 Romania 3 3.2%
8 Singapore 1 1.1%
9 New Zealand 1 1.1%
10 Korea, Republic of 1 1.1%