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 377 51.2%
2 United States 128 17.4%
3 Netherlands 105 14.3%
4 Germany 74 10.1%
5 Canada 15 2%
6 Russia 7 1%
7 India 6 0.8%
8 France 4 0.5%
9 Malaysia 3 0.4%
10 Hong Kong 3 0.4%
11 Brazil 3 0.4%
12 Finland 2 0.3%
13 Ukraine 2 0.3%
14 Singapore 2 0.3%
15 Slovakia 2 0.3%
16 Switzerland 1 0.1%
17 United Kingdom 1 0.1%
18 Indonesia 1 0.1%