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 237 64.9%
2 United States 46 12.6%
3 Germany 38 10.4%
4 Hong Kong 11 3%
5 Canada 8 2.2%
6 Singapore 8 2.2%
7 Taiwan 3 0.8%
8 Moldova, Republic of 3 0.8%
9 Ireland 3 0.8%
10 Japan 2 0.5%
11 France 2 0.5%
12 Greece 2 0.5%
13 Brazil 1 0.3%
14 Malaysia 1 0.3%