BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 70 51.9%
2 United States 33 24.4%
3 Germany 10 7.4%
4 Canada 8 5.9%
5 Taiwan 4 3%
6 Hong Kong 3 2.2%
7 Malaysia 2 1.5%
8 Netherlands 1 0.7%
9 Portugal 1 0.7%
10 Ukraine 1 0.7%
11 United Kingdom 1 0.7%
12 Korea, Republic of 1 0.7%