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 219 48.5%
2 United States 156 34.5%
3 Germany 30 6.6%
4 Canada 12 2.7%
5 United Kingdom 9 2%
6 Taiwan 5 1.1%
7 Malaysia 3 0.7%
8 Singapore 3 0.7%
9 Spain 2 0.4%
10 Hong Kong 2 0.4%
11 India 2 0.4%
12 France 2 0.4%
13 Australia 2 0.4%
14 Brazil 2 0.4%
15 Indonesia 1 0.2%
16 Russia 1 0.2%
17 Ukraine 1 0.2%