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 235 71%
2 United States 53 16%
3 Germany 28 8.5%
4 India 2 0.6%
5 Japan 2 0.6%
6 Czech Republic 2 0.6%
7 France 2 0.6%
8 Norway 2 0.6%
9 Singapore 2 0.6%
10 Turkey 1 0.3%
11 Moldova, Republic of 1 0.3%
12 Netherlands 1 0.3%