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 204 58%
2 United States 101 28.7%
3 Germany 22 6.2%
4 Netherlands 5 1.4%
5 Nigeria 4 1.1%
6 Hong Kong 4 1.1%
7 Australia 3 0.9%
8 Russia 3 0.9%
9 Romania 2 0.6%
10 Korea, Republic of 2 0.6%
11 Brazil 1 0.3%
12 Singapore 1 0.3%