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 323 48.4%
2 United States 158 23.7%
3 Netherlands 69 10.3%
4 Germany 59 8.8%
5 Canada 17 2.5%
6 Taiwan 12 1.8%
7 France 5 0.7%
8 India 4 0.6%
9 Singapore 3 0.4%
10 Ukraine 2 0.3%
11 United Kingdom 2 0.3%
12 Russia 2 0.3%
13 Korea, Republic of 2 0.3%
14 Moldova, Republic of 2 0.3%
15 Italy 2 0.3%
16 Hong Kong 2 0.3%
17 Kazakhstan 1 0.1%
18 Denmark 1 0.1%
19 Finland 1 0.1%