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 58 46.4%
2 United States 33 26.4%
3 Germany 8 6.4%
4 Korea, Republic of 5 4%
5 Netherlands 4 3.2%
6 Russia 4 3.2%
7 Senegal 3 2.4%
8 Singapore 2 1.6%
9 Latvia 2 1.6%
10 Malaysia 1 0.8%
11 Norway 1 0.8%
12 Hong Kong 1 0.8%
13 Italy 1 0.8%
14 France 1 0.8%
15 United Kingdom 1 0.8%