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 203 58.7%
2 United States 58 16.8%
3 Germany 36 10.4%
4 Canada 13 3.8%
5 Singapore 8 2.3%
6 Korea, Republic of 6 1.7%
7 Malaysia 4 1.2%
8 Austria 3 0.9%
9 Taiwan 3 0.9%
10 Turkey 2 0.6%
11 Ukraine 2 0.6%
12 Netherlands 2 0.6%
13 Hong Kong 2 0.6%
14 Japan 1 0.3%
15 Mauritius 1 0.3%
16 Switzerland 1 0.3%
17 United Kingdom 1 0.3%