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 150 54.3%
2 United States 58 21%
3 Germany 47 17%
4 Japan 4 1.4%
5 Singapore 3 1.1%
6 France 3 1.1%
7 Brazil 2 0.7%
8 Switzerland 2 0.7%
9 Russia 2 0.7%
10 Turkey 2 0.7%
11 Australia 1 0.4%
12 Syrian Arab Republic 1 0.4%
13 Canada 1 0.4%