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 224 42.9%
2 United States 200 38.3%
3 Canada 30 5.7%
4 Germany 30 5.7%
5 Hong Kong 10 1.9%
6 Russia 4 0.8%
7 Taiwan 4 0.8%
8 Turkey 4 0.8%
9 Malaysia 2 0.4%
10 Netherlands 2 0.4%
11 Israel 2 0.4%
12 Austria 2 0.4%
13 Belgium 2 0.4%
14 France 1 0.2%
15 Japan 1 0.2%
16 Korea, Republic of 1 0.2%
17 Macao 1 0.2%
18 Romania 1 0.2%
19 United Kingdom 1 0.2%