BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 United States 20 39.2%
2 China 15 29.4%
3 Germany 3 5.9%
4 France 2 3.9%
5 Australia 2 3.9%
6 Sweden 2 3.9%
7 United Kingdom 1 2%
8 Canada 1 2%
9 Hong Kong 1 2%
10 Japan 1 2%
11 Malaysia 1 2%
12 Netherlands 1 2%
13 Singapore 1 2%