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 272 52.3%
2 United States 182 35%
3 Germany 32 6.2%
4 France 6 1.2%
5 Japan 5 1%
6 Singapore 4 0.8%
7 Taiwan 4 0.8%
8 Ukraine 2 0.4%
9 Australia 2 0.4%
10 Malaysia 2 0.4%
11 Netherlands 2 0.4%
12 Hong Kong 2 0.4%
13 Hungary 2 0.4%
14 Indonesia 1 0.2%
15 Norway 1 0.2%
16 United Kingdom 1 0.2%