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 252 59%
2 United States 103 24.1%
3 Germany 44 10.3%
4 Taiwan 5 1.2%
5 Hong Kong 4 0.9%
6 India 3 0.7%
7 Indonesia 3 0.7%
8 Korea, Republic of 3 0.7%
9 Ukraine 2 0.5%
10 Australia 2 0.5%
11 Canada 2 0.5%
12 United Kingdom 1 0.2%
13 Netherlands 1 0.2%
14 Romania 1 0.2%
15 Switzerland 1 0.2%