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 United States 38 38%
2 China 26 26%
3 Germany 9 9%
4 Canada 6 6%
5 Australia 4 4%
6 Malaysia 3 3%
7 Singapore 3 3%
8 Taiwan 3 3%
9 Japan 2 2%
10 Kazakhstan 1 1%
11 Hong Kong 1 1%
12 Ireland 1 1%
13 Cameroon 1 1%
14 France 1 1%
15 Russia 1 1%