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 56.8%
2 United States 61 18.8%
3 Germany 39 12%
4 Taiwan 8 2.5%
5 Singapore 7 2.2%
6 Hong Kong 6 1.9%
7 Japan 5 1.5%
8 Czech Republic 4 1.2%
9 Ireland 3 0.9%
10 United Arab Emirates 2 0.6%
11 Brazil 1 0.3%
12 Turkey 1 0.3%
13 Korea, Republic of 1 0.3%
14 Netherlands 1 0.3%
15 New Zealand 1 0.3%