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 100 60.2%
2 United States 32 19.3%
3 Germany 16 9.6%
4 Taiwan 6 3.6%
5 Hong Kong 5 3%
6 Canada 2 1.2%
7 United Kingdom 1 0.6%
8 Moldova, Republic of 1 0.6%
9 Netherlands 1 0.6%
10 Portugal 1 0.6%
11 Russia 1 0.6%