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 157 49.5%
2 United States 75 23.7%
3 Germany 36 11.4%
4 France 21 6.6%
5 Canada 13 4.1%
6 Netherlands 4 1.3%
7 Russia 3 0.9%
8 Japan 2 0.6%
9 Malaysia 2 0.6%
10 Norway 1 0.3%
11 Hong Kong 1 0.3%
12 India 1 0.3%
13 Singapore 1 0.3%