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 226 64.6%
2 United States 62 17.7%
3 Germany 40 11.4%
4 Taiwan 9 2.6%
5 Hong Kong 4 1.1%
6 Macao 3 0.9%
7 Singapore 2 0.6%
8 Spain 2 0.6%
9 United Kingdom 1 0.3%
10 Netherlands 1 0.3%