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 27 37%
2 United States 15 20.5%
3 Germany 7 9.6%
4 Malaysia 4 5.5%
5 Netherlands 4 5.5%
6 Canada 4 5.5%
7 Australia 3 4.1%
8 Switzerland 2 2.7%
9 New Zealand 2 2.7%
10 Hong Kong 2 2.7%
11 Japan 2 2.7%
12 Singapore 1 1.4%