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 164 64.1%
2 United States 42 16.4%
3 Germany 22 8.6%
4 Netherlands 5 2%
5 Japan 4 1.6%
6 Hong Kong 4 1.6%
7 Ireland 3 1.2%
8 France 2 0.8%
9 Canada 2 0.8%
10 Singapore 2 0.8%
11 Spain 2 0.8%
12 Taiwan 2 0.8%
13 Korea, Republic of 1 0.4%
14 Russia 1 0.4%