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 167 49%
2 United States 81 23.8%
3 Germany 31 9.1%
4 Canada 13 3.8%
5 Netherlands 13 3.8%
6 Hong Kong 7 2.1%
7 Singapore 7 2.1%
8 Taiwan 6 1.8%
9 Malaysia 6 1.8%
10 Australia 3 0.9%
11 India 2 0.6%
12 Japan 2 0.6%
13 United Kingdom 2 0.6%
14 Russia 1 0.3%