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 169 56.5%
2 United States 49 16.4%
3 Germany 32 10.7%
4 Taiwan 18 6%
5 Canada 13 4.3%
6 Netherlands 6 2%
7 Brazil 2 0.7%
8 Colombia 2 0.7%
9 Macao 2 0.7%
10 Singapore 2 0.7%
11 Switzerland 2 0.7%
12 Russia 1 0.3%
13 Japan 1 0.3%