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 231 68.8%
2 United States 46 13.7%
3 Germany 17 5.1%
4 Taiwan 12 3.6%
5 Hong Kong 6 1.8%
6 Romania 5 1.5%
7 Korea, Republic of 4 1.2%
8 Moldova, Republic of 2 0.6%
9 Netherlands 2 0.6%
10 New Zealand 2 0.6%
11 Canada 2 0.6%
12 Japan 2 0.6%
13 Sweden 2 0.6%
14 United Kingdom 1 0.3%
15 Spain 1 0.3%
16 Iraq 1 0.3%