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 184 61.3%
2 United States 51 17%
3 Germany 37 12.3%
4 Canada 10 3.3%
5 Hong Kong 2 0.7%
6 Japan 2 0.7%
7 Moldova, Republic of 2 0.7%
8 Morocco 2 0.7%
9 Netherlands 2 0.7%
10 Norway 2 0.7%
11 Portugal 2 0.7%
12 Singapore 2 0.7%
13 Taiwan 2 0.7%