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 242 68.9%
2 United States 48 13.7%
3 Germany 29 8.3%
4 Taiwan 6 1.7%
5 Hong Kong 5 1.4%
6 Nigeria 5 1.4%
7 Russia 4 1.1%
8 Japan 4 1.1%
9 Singapore 2 0.6%
10 Australia 2 0.6%
11 Canada 2 0.6%
12 Netherlands 1 0.3%
13 Turkey 1 0.3%