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 195 63.3%
2 United States 51 16.6%
3 Germany 43 14%
4 Taiwan 4 1.3%
5 United Kingdom 2 0.6%
6 Sweden 2 0.6%
7 Netherlands 2 0.6%
8 Norway 2 0.6%
9 Singapore 2 0.6%
10 South Africa 1 0.3%
11 Russia 1 0.3%
12 Malaysia 1 0.3%
13 Moldova, Republic of 1 0.3%
14 Canada 1 0.3%