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 291 64.2%
2 United States 73 16.1%
3 Germany 31 6.8%
4 Canada 25 5.5%
5 Hong Kong 13 2.9%
6 Japan 5 1.1%
7 Taiwan 5 1.1%
8 Belarus 3 0.7%
9 Australia 2 0.4%
10 Denmark 2 0.4%
11 Netherlands 2 0.4%
12 Moldova, Republic of 1 0.2%