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 163 69.1%
2 United States 27 11.4%
3 Germany 25 10.6%
4 Singapore 5 2.1%
5 Taiwan 3 1.3%
6 United Kingdom 3 1.3%
7 Mexico 2 0.8%
8 Romania 2 0.8%
9 Macao 2 0.8%
10 Brazil 2 0.8%
11 Malaysia 1 0.4%
12 Russia 1 0.4%