BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 42 42.9%
2 China 35 35.7%
3 Germany 5 5.1%
4 Canada 4 4.1%
5 France 3 3.1%
6 Hong Kong 2 2%
7 Russia 2 2%
8 Singapore 1 1%
9 Japan 1 1%
10 Korea, Republic of 1 1%
11 New Zealand 1 1%
12 Greece 1 1%