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 227 51.7%
2 United States 111 25.3%
3 Germany 31 7.1%
4 Malaysia 17 3.9%
5 Taiwan 15 3.4%
6 Hong Kong 9 2.1%
7 Japan 8 1.8%
8 Singapore 6 1.4%
9 Spain 2 0.5%
10 New Zealand 2 0.5%
11 Romania 2 0.5%
12 Canada 2 0.5%
13 Indonesia 2 0.5%
14 Colombia 1 0.2%
15 Kazakhstan 1 0.2%
16 Macao 1 0.2%
17 Netherlands 1 0.2%
18 United Kingdom 1 0.2%