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 319 67.2%
2 United States 64 13.5%
3 Germany 36 7.6%
4 Canada 17 3.6%
5 Hong Kong 10 2.1%
6 Taiwan 6 1.3%
7 Singapore 4 0.8%
8 Netherlands 3 0.6%
9 Russia 3 0.6%
10 Iran, Islamic Republic of 3 0.6%
11 Australia 3 0.6%
12 Switzerland 2 0.4%
13 Ukraine 2 0.4%
14 France 1 0.2%
15 Mauritius 1 0.2%
16 Hungary 1 0.2%