BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 228 58.8%
2 United States 54 13.9%
3 Germany 40 10.3%
4 Netherlands 27 7%
5 Japan 11 2.8%
6 Hong Kong 5 1.3%
7 Singapore 5 1.3%
8 United Kingdom 4 1%
9 India 3 0.8%
10 Russia 2 0.5%
11 Hungary 2 0.5%
12 Moldova, Republic of 2 0.5%
13 Austria 2 0.5%
14 Belarus 2 0.5%
15 Portugal 1 0.3%