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 184 54%
2 United States 56 16.4%
3 Germany 33 9.7%
4 Hong Kong 16 4.7%
5 Canada 16 4.7%
6 Malaysia 15 4.4%
7 Singapore 5 1.5%
8 Russia 3 0.9%
9 France 3 0.9%
10 Italy 3 0.9%
11 Japan 3 0.9%
12 Moldova, Republic of 2 0.6%
13 Netherlands 2 0.6%