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 31 33%
2 United States 28 29.8%
3 Germany 20 21.3%
4 Netherlands 4 4.3%
5 Canada 3 3.2%
6 Hong Kong 2 2.1%
7 Malaysia 1 1.1%
8 Brazil 1 1.1%
9 Finland 1 1.1%
10 Singapore 1 1.1%
11 Taiwan 1 1.1%
12 Ukraine 1 1.1%