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 174 76.7%
2 United States 22 9.7%
3 Germany 11 4.8%
4 Hong Kong 4 1.8%
5 Taiwan 4 1.8%
6 Netherlands 3 1.3%
7 Russia 2 0.9%
8 Japan 2 0.9%
9 Malaysia 2 0.9%
10 Macao 1 0.4%
11 Australia 1 0.4%
12 Belgium 1 0.4%