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 United States 47 42%
2 China 31 27.7%
3 Germany 8 7.1%
4 Hong Kong 6 5.4%
5 Japan 5 4.5%
6 Taiwan 4 3.6%
7 Russia 2 1.8%
8 Sweden 2 1.8%
9 France 1 0.9%
10 Korea, Republic of 1 0.9%
11 Netherlands 1 0.9%
12 New Zealand 1 0.9%
13 Portugal 1 0.9%
14 United Kingdom 1 0.9%
15 1 0.9%