BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 140 55.6%
2 United States 60 23.8%
3 Germany 15 6%
4 Hong Kong 12 4.8%
5 United Kingdom 6 2.4%
6 Australia 5 2%
7 Japan 4 1.6%
8 Canada 3 1.2%
9 Taiwan 2 0.8%
10 Malaysia 2 0.8%
11 New Zealand 1 0.4%
12 Portugal 1 0.4%
13 Spain 1 0.4%