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 150 42.1%
2 United States 119 33.4%
3 Germany 37 10.4%
4 Hong Kong 21 5.9%
5 Taiwan 9 2.5%
6 Korea, Republic of 4 1.1%
7 3 0.8%
8 Switzerland 2 0.6%
9 Malaysia 2 0.6%
10 Denmark 2 0.6%
11 France 2 0.6%
12 United Kingdom 2 0.6%
13 Turkey 1 0.3%
14 Japan 1 0.3%
15 Saudi Arabia 1 0.3%