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 205 57.3%
2 United States 60 16.8%
3 Germany 45 12.6%
4 Canada 15 4.2%
5 Russia 9 2.5%
6 Hong Kong 7 2%
7 Australia 3 0.8%
8 2 0.6%
9 Ukraine 2 0.6%
10 Netherlands 2 0.6%
11 New Zealand 2 0.6%
12 Viet Nam 2 0.6%
13 France 1 0.3%
14 Ireland 1 0.3%
15 Japan 1 0.3%
16 Mauritius 1 0.3%