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 168 55.3%
2 United States 58 19.1%
3 Germany 33 10.9%
4 Korea, Republic of 12 3.9%
5 France 11 3.6%
6 Netherlands 8 2.6%
7 Malaysia 3 1%
8 Hong Kong 2 0.7%
9 Russia 2 0.7%
10 Singapore 2 0.7%
11 United Arab Emirates 1 0.3%
12 United Kingdom 1 0.3%
13 Japan 1 0.3%
14 Brazil 1 0.3%
15 Bulgaria 1 0.3%