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 40 33.9%
2 United States 37 31.4%
3 Netherlands 16 13.6%
4 Germany 7 5.9%
5 Hong Kong 7 5.9%
6 Taiwan 3 2.5%
7 Thailand 3 2.5%
8 Russia 2 1.7%
9 Sweden 1 0.8%
10 Portugal 1 0.8%
11 Moldova, Republic of 1 0.8%