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 787 56.3%
2 United States 295 21.1%
3 Netherlands 135 9.7%
4 Germany 66 4.7%
5 France 38 2.7%
6 Hong Kong 19 1.4%
7 Canada 18 1.3%
8 Korea, Republic of 7 0.5%
9 Taiwan 7 0.5%
10 United Kingdom 4 0.3%
11 Japan 4 0.3%
12 Singapore 4 0.3%
13 Ukraine 3 0.2%
14 Norway 2 0.1%
15 Russia 1 0.1%
16 Serbia 1 0.1%
17 Mauritius 1 0.1%
18 Australia 1 0.1%
19 India 1 0.1%
20 Ireland 1 0.1%
21 Italy 1 0.1%
22 Viet Nam 1 0.1%