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 140 49.6%
2 United States 70 24.8%
3 Germany 39 13.8%
4 Taiwan 7 2.5%
5 Canada 6 2.1%
6 Hong Kong 4 1.4%
7 Russia 3 1.1%
8 United Kingdom 2 0.7%
9 Hungary 2 0.7%
10 Japan 2 0.7%
11 Finland 2 0.7%
12 Australia 1 0.4%
13 Moldova, Republic of 1 0.4%
14 Morocco 1 0.4%
15 New Zealand 1 0.4%
16 Turkey 1 0.4%