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 198 50.3%
2 United States 129 32.7%
3 Germany 30 7.6%
4 Hong Kong 10 2.5%
5 Taiwan 5 1.3%
6 Japan 4 1%
7 France 3 0.8%
8 Switzerland 2 0.5%
9 Colombia 2 0.5%
10 2 0.5%
11 Australia 2 0.5%
12 Austria 1 0.3%
13 Korea, Republic of 1 0.3%
14 Moldova, Republic of 1 0.3%
15 Romania 1 0.3%
16 Singapore 1 0.3%
17 Indonesia 1 0.3%
18 United Kingdom 1 0.3%