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 159 54.1%
2 United States 65 22.1%
3 Germany 32 10.9%
4 Canada 8 2.7%
5 Taiwan 5 1.7%
6 Hong Kong 5 1.7%
7 France 4 1.4%
8 Netherlands 3 1%
9 Singapore 2 0.7%
10 Sweden 2 0.7%
11 Belgium 2 0.7%
12 India 2 0.7%
13 Japan 2 0.7%
14 Moldova, Republic of 1 0.3%
15 1 0.3%
16 Ukraine 1 0.3%