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 173 55.1%
2 United States 52 16.6%
3 Germany 34 10.8%
4 Canada 29 9.2%
5 Netherlands 8 2.5%
6 Taiwan 4 1.3%
7 Hong Kong 3 1%
8 India 2 0.6%
9 New Zealand 2 0.6%
10 Switzerland 2 0.6%
11 France 2 0.6%
12 Norway 1 0.3%
13 Singapore 1 0.3%
14 Malaysia 1 0.3%