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 217 60.8%
2 United States 58 16.2%
3 Germany 37 10.4%
4 Canada 16 4.5%
5 Ireland 4 1.1%
6 Taiwan 3 0.8%
7 Netherlands 3 0.8%
8 Norway 2 0.6%
9 Portugal 2 0.6%
10 Australia 2 0.6%
11 Czech Republic 2 0.6%
12 France 2 0.6%
13 Turkey 2 0.6%
14 Malaysia 2 0.6%
15 Singapore 2 0.6%
16 Japan 1 0.3%
17 United Kingdom 1 0.3%
18 Russia 1 0.3%