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 160 47.6%
2 United States 123 36.6%
3 Germany 27 8%
4 Hong Kong 11 3.3%
5 Korea, Republic of 2 0.6%
6 Canada 2 0.6%
7 Malaysia 2 0.6%
8 Taiwan 2 0.6%
9 Tanzania, United Republic of 2 0.6%
10 Turkey 1 0.3%
11 Russia 1 0.3%
12 Singapore 1 0.3%
13 Brazil 1 0.3%
14 Macao 1 0.3%