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 282 70.7%
2 United States 44 11%
3 Germany 43 10.8%
4 Canada 9 2.3%
5 Russia 4 1%
6 Taiwan 2 0.5%
7 Azerbaijan 2 0.5%
8 France 2 0.5%
9 Japan 2 0.5%
10 Moldova, Republic of 2 0.5%
11 Netherlands 2 0.5%
12 Norway 2 0.5%
13 Singapore 1 0.3%
14 Hong Kong 1 0.3%
15 Israel 1 0.3%