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 130 47.4%
2 United States 73 26.6%
3 Netherlands 24 8.8%
4 Germany 15 5.5%
5 Hong Kong 9 3.3%
6 Japan 6 2.2%
7 Taiwan 5 1.8%
8 Canada 3 1.1%
9 France 2 0.7%
10 United Kingdom 2 0.7%
11 Portugal 1 0.4%
12 Singapore 1 0.4%
13 Australia 1 0.4%
14 Korea, Republic of 1 0.4%
15 Moldova, Republic of 1 0.4%