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 315 64.2%
2 United States 107 21.8%
3 Germany 45 9.2%
4 Singapore 3 0.6%
5 Taiwan 3 0.6%
6 Australia 2 0.4%
7 Malaysia 2 0.4%
8 Denmark 2 0.4%
9 Finland 2 0.4%
10 Russia 2 0.4%
11 Georgia 1 0.2%
12 India 1 0.2%
13 Iran, Islamic Republic of 1 0.2%
14 Israel 1 0.2%
15 Moldova, Republic of 1 0.2%
16 Cambodia 1 0.2%
17 Canada 1 0.2%
18 Uzbekistan 1 0.2%