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 53 62.4%
2 Germany 7 8.2%
3 United States 6 7.1%
4 Netherlands 5 5.9%
5 Ukraine 3 3.5%
6 Japan 3 3.5%
7 Taiwan 2 2.4%
8 India 2 2.4%
9 Brazil 1 1.2%
10 Russia 1 1.2%
11 Hong Kong 1 1.2%
12 France 1 1.2%