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 171 57.2%
2 United States 51 17.1%
3 Germany 31 10.4%
4 Hong Kong 10 3.3%
5 Egypt 7 2.3%
6 Australia 7 2.3%
7 Japan 7 2.3%
8 Taiwan 3 1%
9 Viet Nam 2 0.7%
10 Malaysia 2 0.7%
11 Romania 2 0.7%
12 Singapore 2 0.7%
13 Spain 1 0.3%
14 Canada 1 0.3%
15 France 1 0.3%
16 Ireland 1 0.3%