BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 70 45.2%
2 United States 29 18.7%
3 Netherlands 23 14.8%
4 Germany 6 3.9%
5 Hong Kong 6 3.9%
6 Portugal 5 3.2%
7 Taiwan 5 3.2%
8 Russia 2 1.3%
9 Australia 2 1.3%
10 Canada 2 1.3%
11 New Zealand 1 0.6%
12 Japan 1 0.6%
13 Korea, Republic of 1 0.6%
14 Singapore 1 0.6%
15 United Kingdom 1 0.6%