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 117 72.7%
2 Germany 10 6.2%
3 United States 10 6.2%
4 Belarus 6 3.7%
5 Japan 5 3.1%
6 Korea, Republic of 4 2.5%
7 Netherlands 3 1.9%
8 Russia 2 1.2%
9 Singapore 2 1.2%
10 United Kingdom 1 0.6%
11 Hong Kong 1 0.6%