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 159 40.5%
2 United States 141 35.9%
3 Netherlands 33 8.4%
4 Germany 32 8.1%
5 Taiwan 5 1.3%
6 Norway 4 1%
7 Russia 3 0.8%
8 Singapore 3 0.8%
9 Malaysia 3 0.8%
10 Hong Kong 3 0.8%
11 India 2 0.5%
12 Finland 2 0.5%
13 Canada 2 0.5%
14 Australia 1 0.3%