BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 52 59.8%
2 United States 14 16.1%
3 Netherlands 6 6.9%
4 Germany 4 4.6%
5 France 3 3.4%
6 Ukraine 2 2.3%
7 Japan 2 2.3%
8 Malaysia 1 1.1%
9 United Kingdom 1 1.1%
10 Hong Kong 1 1.1%
11 Canada 1 1.1%