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 15 33.3%
2 United States 11 24.4%
3 Germany 5 11.1%
4 Hong Kong 2 4.4%
5 Romania 2 4.4%
6 Singapore 2 4.4%
7 Canada 2 4.4%
8 Moldova, Republic of 2 4.4%
9 Netherlands 1 2.2%
10 Taiwan 1 2.2%
11 United Kingdom 1 2.2%
12 Japan 1 2.2%