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 54.4%
2 United States 99 21.4%
3 Germany 26 5.6%
4 Netherlands 23 5%
5 Taiwan 17 3.7%
6 Canada 16 3.5%
7 Japan 10 2.2%
8 Korea, Republic of 3 0.6%
9 Macao 3 0.6%
10 Switzerland 2 0.4%
11 Australia 2 0.4%
12 Finland 2 0.4%
13 Luxembourg 1 0.2%
14 India 1 0.2%
15 Indonesia 1 0.2%
16 United Kingdom 1 0.2%
17 Norway 1 0.2%
18 Russia 1 0.2%
19 Singapore 1 0.2%
20 Sweden 1 0.2%