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 87 62.1%
2 United States 27 19.3%
3 Germany 12 8.6%
4 Hong Kong 3 2.1%
5 Taiwan 3 2.1%
6 Korea, Republic of 2 1.4%
7 Malaysia 1 0.7%
8 Portugal 1 0.7%
9 Singapore 1 0.7%
10 Ukraine 1 0.7%
11 United Kingdom 1 0.7%
12 Canada 1 0.7%