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 39 40.2%
2 China 20 20.6%
3 United States 16 16.5%
4 Germany 8 8.2%
5 United Kingdom 4 4.1%
6 Japan 3 3.1%
7 Taiwan 2 2.1%
8 Korea, Republic of 1 1%
9 Malaysia 1 1%
10 Singapore 1 1%
11 Hong Kong 1 1%
12 France 1 1%