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
1 480 68.4%
2 United States 142 20.2%
3 China 35 5%
4 Germany 17 2.4%
5 France 11 1.6%
6 Japan 4 0.6%
7 United Kingdom 4 0.6%
8 Korea, Republic of 3 0.4%
9 Malaysia 2 0.3%
10 Norway 1 0.1%
11 Ukraine 1 0.1%
12 Canada 1 0.1%
13 Hong Kong 1 0.1%