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 54.6%
2 United States 47 16.2%
3 Germany 33 11.3%
4 Canada 12 4.1%
5 Hong Kong 9 3.1%
6 Japan 8 2.7%
7 Italy 4 1.4%
8 Taiwan 4 1.4%
9 Russia 3 1%
10 3 1%
11 Australia 3 1%
12 Czech Republic 2 0.7%
13 Austria 1 0.3%
14 Netherlands 1 0.3%
15 Portugal 1 0.3%
16 Singapore 1 0.3%