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 218 61.1%
2 United States 75 21%
3 Germany 30 8.4%
4 Canada 12 3.4%
5 Hong Kong 5 1.4%
6 Russia 4 1.1%
7 Netherlands 3 0.8%
8 2 0.6%
9 Australia 2 0.6%
10 Singapore 2 0.6%
11 Switzerland 2 0.6%
12 New Zealand 1 0.3%
13 Japan 1 0.3%