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 163 56.2%
2 United States 48 16.6%
3 Germany 37 12.8%
4 Hong Kong 7 2.4%
5 Taiwan 5 1.7%
6 Russia 4 1.4%
7 Brazil 4 1.4%
8 Canada 3 1%
9 Turkmenistan 3 1%
10 France 3 1%
11 Malaysia 3 1%
12 Singapore 2 0.7%
13 Spain 2 0.7%
14 Denmark 2 0.7%
15 Japan 2 0.7%
16 Korea, Republic of 1 0.3%
17 Switzerland 1 0.3%