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 182 59.5%
2 United States 50 16.3%
3 Germany 45 14.7%
4 Russia 7 2.3%
5 Brazil 4 1.3%
6 Canada 4 1.3%
7 Algeria 3 1%
8 Hong Kong 3 1%
9 Czech Republic 2 0.7%
10 Australia 2 0.7%
11 Singapore 2 0.7%
12 Ukraine 1 0.3%
13 New Zealand 1 0.3%