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 145 52.5%
2 United States 49 17.8%
3 Netherlands 37 13.4%
4 Germany 27 9.8%
5 Canada 4 1.4%
6 India 3 1.1%
7 Hong Kong 2 0.7%
8 Singapore 2 0.7%
9 Switzerland 2 0.7%
10 Ukraine 2 0.7%
11 Viet Nam 1 0.4%
12 Turkey 1 0.4%
13 Moldova, Republic of 1 0.4%