BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 29 34.1%
2 China 16 18.8%
3 Germany 14 16.5%
4 France 9 10.6%
5 Ukraine 8 9.4%
6 United Kingdom 2 2.4%
7 Korea, Republic of 2 2.4%
8 Russia 1 1.2%
9 Turkey 1 1.2%
10 Japan 1 1.2%
11 Australia 1 1.2%
12 Brazil 1 1.2%