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 268 53.3%
2 United States 111 22.1%
3 Germany 33 6.6%
4 Canada 32 6.4%
5 Hong Kong 22 4.4%
6 Japan 10 2%
7 Singapore 8 1.6%
8 Netherlands 4 0.8%
9 Kazakhstan 3 0.6%
10 Finland 2 0.4%
11 France 2 0.4%
12 Taiwan 2 0.4%
13 Thailand 2 0.4%
14 Romania 2 0.4%
15 Philippines 1 0.2%
16 Australia 1 0.2%