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 16 28.6%
2 United States 12 21.4%
3 Hong Kong 10 17.9%
4 Germany 4 7.1%
5 Canada 4 7.1%
6 2 3.6%
7 Italy 2 3.6%
8 Japan 2 3.6%
9 Malaysia 2 3.6%
10 Russia 1 1.8%
11 Australia 1 1.8%