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 178 58.9%
2 United States 54 17.9%
3 Germany 41 13.6%
4 Ireland 5 1.7%
5 Japan 4 1.3%
6 Malaysia 2 0.7%
7 Netherlands 2 0.7%
8 Norway 2 0.7%
9 Russia 2 0.7%
10 Singapore 2 0.7%
11 Spain 2 0.7%
12 Turkmenistan 2 0.7%
13 Hong Kong 2 0.7%
14 France 2 0.7%
15 Canada 2 0.7%