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 United States 251 36.2%
2 China 213 30.7%
3 Taiwan 122 17.6%
4 Germany 33 4.8%
5 Hong Kong 20 2.9%
6 Japan 13 1.9%
7 Russia 12 1.7%
8 United Kingdom 7 1%
9 Netherlands 5 0.7%
10 Brazil 4 0.6%
11 India 3 0.4%
12 Canada 2 0.3%
13 New Zealand 2 0.3%
14 Moldova, Republic of 2 0.3%
15 Singapore 1 0.1%
16 Spain 1 0.1%
17 Turkey 1 0.1%
18 Austria 1 0.1%
19 Belgium 1 0.1%