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 175 61.4%
2 Germany 40 14%
3 United States 37 13%
4 Taiwan 10 3.5%
5 India 6 2.1%
6 Hong Kong 4 1.4%
7 Netherlands 3 1.1%
8 Canada 3 1.1%
9 Viet Nam 2 0.7%
10 Russia 2 0.7%
11 United Kingdom 1 0.4%
12 Malaysia 1 0.4%
13 Moldova, Republic of 1 0.4%