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 157 48.8%
2 United States 99 30.7%
3 Germany 35 10.9%
4 Canada 14 4.3%
5 Russia 3 0.9%
6 Ukraine 3 0.9%
7 Serbia 2 0.6%
8 Australia 2 0.6%
9 Hong Kong 2 0.6%
10 Moldova, Republic of 1 0.3%
11 New Zealand 1 0.3%
12 France 1 0.3%
13 Taiwan 1 0.3%
14 Uzbekistan 1 0.3%