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 86 34.7%
2 United States 81 32.7%
3 Netherlands 28 11.3%
4 Germany 18 7.3%
5 Hong Kong 12 4.8%
6 Japan 6 2.4%
7 United Kingdom 4 1.6%
8 Taiwan 3 1.2%
9 Canada 2 0.8%
10 Singapore 2 0.8%
11 Malaysia 2 0.8%
12 Romania 2 0.8%
13 Russia 1 0.4%
14 Portugal 1 0.4%