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 216 59.2%
2 United States 54 14.8%
3 Germany 35 9.6%
4 Canada 30 8.2%
5 Hong Kong 8 2.2%
6 Russia 5 1.4%
7 Singapore 3 0.8%
8 Taiwan 3 0.8%
9 Japan 3 0.8%
10 Moldova, Republic of 2 0.5%
11 India 2 0.5%
12 Brazil 2 0.5%
13 1 0.3%
14 Australia 1 0.3%