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 166 42%
2 United States 124 31.4%
3 Germany 36 9.1%
4 Netherlands 22 5.6%
5 Canada 14 3.5%
6 Japan 13 3.3%
7 France 4 1%
8 Moldova, Republic of 3 0.8%
9 Hong Kong 3 0.8%
10 Australia 2 0.5%
11 Malaysia 2 0.5%
12 Singapore 2 0.5%
13 United Kingdom 2 0.5%
14 Denmark 1 0.3%
15 Lithuania 1 0.3%