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 133 50.8%
2 United States 63 24%
3 Germany 19 7.3%
4 Hong Kong 16 6.1%
5 Taiwan 10 3.8%
6 Japan 6 2.3%
7 Malaysia 3 1.1%
8 United Kingdom 3 1.1%
9 Canada 2 0.8%
10 Korea, Republic of 2 0.8%
11 Netherlands 1 0.4%
12 Portugal 1 0.4%
13 Russia 1 0.4%
14 Singapore 1 0.4%
15 Sweden 1 0.4%