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 142 55%
2 United States 58 22.5%
3 Germany 32 12.4%
4 Hong Kong 9 3.5%
5 Switzerland 4 1.6%
6 United Kingdom 2 0.8%
7 Malaysia 2 0.8%
8 Netherlands 2 0.8%
9 India 2 0.8%
10 Belarus 2 0.8%
11 Australia 1 0.4%
12 Denmark 1 0.4%
13 Indonesia 1 0.4%