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 251 54%
2 United States 134 28.8%
3 Germany 39 8.4%
4 Hong Kong 11 2.4%
5 Taiwan 9 1.9%
6 United Kingdom 5 1.1%
7 Canada 5 1.1%
8 Japan 4 0.9%
9 Russia 2 0.4%
10 Singapore 1 0.2%
11 Switzerland 1 0.2%
12 Australia 1 0.2%
13 Malaysia 1 0.2%
14 Netherlands 1 0.2%