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 138 50.5%
2 United States 64 23.4%
3 Netherlands 22 8.1%
4 Hong Kong 14 5.1%
5 Germany 8 2.9%
6 Canada 4 1.5%
7 United Kingdom 4 1.5%
8 Taiwan 3 1.1%
9 Serbia 2 0.7%
10 Singapore 2 0.7%
11 Japan 2 0.7%
12 Greece 2 0.7%
13 Brazil 2 0.7%
14 Australia 1 0.4%
15 France 1 0.4%
16 Italy 1 0.4%
17 Korea, Republic of 1 0.4%
18 New Zealand 1 0.4%
19 Portugal 1 0.4%