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 187 64%
2 United States 40 13.7%
3 Germany 36 12.3%
4 Russia 6 2.1%
5 Taiwan 6 2.1%
6 Australia 3 1%
7 Brazil 2 0.7%
8 Canada 2 0.7%
9 Singapore 2 0.7%
10 Turkey 2 0.7%
11 United Kingdom 2 0.7%
12 South Africa 1 0.3%
13 Indonesia 1 0.3%
14 Moldova, Republic of 1 0.3%
15 Finland 1 0.3%