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 197 54.6%
2 United States 64 17.7%
3 Netherlands 33 9.1%
4 Germany 30 8.3%
5 Hong Kong 12 3.3%
6 Canada 10 2.8%
7 Malaysia 3 0.8%
8 Singapore 2 0.6%
9 United Kingdom 2 0.6%
10 France 2 0.6%
11 India 2 0.6%
12 Russia 2 0.6%
13 Saudi Arabia 1 0.3%
14 1 0.3%