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 166 49.1%
2 United States 70 20.7%
3 Germany 34 10.1%
4 Canada 23 6.8%
5 Netherlands 19 5.6%
6 Taiwan 6 1.8%
7 Korea, Republic of 6 1.8%
8 Hong Kong 5 1.5%
9 Austria 3 0.9%
10 France 2 0.6%
11 Singapore 2 0.6%
12 Japan 1 0.3%
13 Moldova, Republic of 1 0.3%