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 146 50.2%
2 United States 72 24.7%
3 Germany 26 8.9%
4 France 22 7.6%
5 Korea, Republic of 8 2.7%
6 Taiwan 4 1.4%
7 Japan 3 1%
8 Australia 2 0.7%
9 Macao 2 0.7%
10 Hong Kong 2 0.7%
11 Singapore 2 0.7%
12 Viet Nam 1 0.3%
13 Netherlands 1 0.3%