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 59 46.8%
2 United States 25 19.8%
3 Netherlands 11 8.7%
4 Germany 7 5.6%
5 Hong Kong 7 5.6%
6 Russia 5 4%
7 Slovakia 2 1.6%
8 Japan 2 1.6%
9 Canada 2 1.6%
10 Australia 1 0.8%
11 New Zealand 1 0.8%
12 Poland 1 0.8%
13 Mauritius 1 0.8%
14 Sweden 1 0.8%
15 United Kingdom 1 0.8%