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 281 61.1%
2 United States 69 15%
3 Germany 43 9.3%
4 Canada 31 6.7%
5 Japan 5 1.1%
6 Taiwan 5 1.1%
7 Netherlands 5 1.1%
8 Australia 4 0.9%
9 Hong Kong 3 0.7%
10 Singapore 3 0.7%
11 Russia 2 0.4%
12 Switzerland 2 0.4%
13 India 2 0.4%
14 Mali 2 0.4%
15 Mauritius 1 0.2%
16 United Kingdom 1 0.2%
17 Sweden 1 0.2%