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 36 40.4%
2 China 29 32.6%
3 Germany 10 11.2%
4 Japan 5 5.6%
5 Romania 3 3.4%
6 Singapore 1 1.1%
7 Taiwan 1 1.1%
8 Macao 1 1.1%
9 Malaysia 1 1.1%
10 Netherlands 1 1.1%
11 New Zealand 1 1.1%