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 215 46.8%
2 United States 151 32.9%
3 Germany 29 6.3%
4 Canada 25 5.4%
5 Singapore 8 1.7%
6 Australia 6 1.3%
7 Hong Kong 4 0.9%
8 United Kingdom 4 0.9%
9 Taiwan 3 0.7%
10 Malaysia 2 0.4%
11 Netherlands 2 0.4%
12 Romania 2 0.4%
13 Russia 2 0.4%
14 Belgium 2 0.4%
15 Argentina 2 0.4%
16 Brazil 1 0.2%
17 Spain 1 0.2%