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 63 56.2%
2 United States 14 12.5%
3 Netherlands 12 10.7%
4 Germany 7 6.2%
5 Venezuela, Bolivarian Republic of 4 3.6%
6 Canada 2 1.8%
7 Hong Kong 2 1.8%
8 Japan 2 1.8%
9 Korea, Republic of 2 1.8%
10 Russia 2 1.8%
11 Taiwan 1 0.9%
12 France 1 0.9%