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 241 48.6%
2 United States 138 27.8%
3 Germany 35 7.1%
4 Canada 24 4.8%
5 Taiwan 12 2.4%
6 Netherlands 10 2%
7 Ireland 9 1.8%
8 Hong Kong 8 1.6%
9 Singapore 6 1.2%
10 United Kingdom 4 0.8%
11 Australia 3 0.6%
12 Japan 3 0.6%
13 Moldova, Republic of 1 0.2%
14 Israel 1 0.2%
15 Bulgaria 1 0.2%