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 50 43.9%
2 Germany 23 20.2%
3 United States 20 17.5%
4 Hong Kong 5 4.4%
5 India 3 2.6%
6 Singapore 3 2.6%
7 Taiwan 3 2.6%
8 Canada 2 1.8%
9 France 1 0.9%
10 Malaysia 1 0.9%
11 Netherlands 1 0.9%
12 Portugal 1 0.9%
13 Russia 1 0.9%