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 172 60.8%
2 United States 35 12.4%
3 Germany 20 7.1%
4 Netherlands 17 6%
5 Hong Kong 9 3.2%
6 France 7 2.5%
7 Japan 5 1.8%
8 Canada 3 1.1%
9 Spain 3 1.1%
10 United Kingdom 2 0.7%
11 Portugal 2 0.7%
12 Moldova, Republic of 2 0.7%
13 Israel 1 0.4%
14 Brazil 1 0.4%
15 Russia 1 0.4%
16 Philippines 1 0.4%
17 Taiwan 1 0.4%
18 Ukraine 1 0.4%