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 United States 227 40%
2 China 159 28%
3 Germany 53 9.3%
4 Netherlands 48 8.5%
5 France 22 3.9%
6 Hong Kong 12 2.1%
7 Canada 10 1.8%
8 Portugal 7 1.2%
9 6 1.1%
10 Taiwan 4 0.7%
11 Ukraine 4 0.7%
12 Norway 4 0.7%
13 United Kingdom 3 0.5%
14 Korea, Republic of 3 0.5%
15 Japan 2 0.4%
16 Brazil 2 0.4%
17 Moldova, Republic of 1 0.2%