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 133 52.8%
2 United States 43 17.1%
3 Germany 38 15.1%
4 Canada 11 4.4%
5 Hong Kong 6 2.4%
6 Australia 4 1.6%
7 Russia 4 1.6%
8 Taiwan 3 1.2%
9 Ukraine 2 0.8%
10 Singapore 2 0.8%
11 Brazil 2 0.8%
12 Italy 2 0.8%
13 Mexico 2 0.8%