BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 52 36.6%
2 United States 45 31.7%
3 Netherlands 11 7.7%
4 Germany 10 7%
5 Hong Kong 7 4.9%
6 Canada 6 4.2%
7 United Kingdom 2 1.4%
8 Japan 2 1.4%
9 Russia 2 1.4%
10 Singapore 1 0.7%
11 Switzerland 1 0.7%
12 Taiwan 1 0.7%
13 New Zealand 1 0.7%
14 Portugal 1 0.7%