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 154 63.6%
2 United States 54 22.3%
3 Germany 10 4.1%
4 Korea, Republic of 9 3.7%
5 Netherlands 4 1.7%
6 France 3 1.2%
7 Philippines 2 0.8%
8 United Kingdom 2 0.8%
9 Australia 1 0.4%
10 Russia 1 0.4%
11 Iraq 1 0.4%
12 Japan 1 0.4%