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 203 47.9%
2 United States 137 32.3%
3 Germany 34 8%
4 Canada 28 6.6%
5 Netherlands 7 1.7%
6 Malaysia 4 0.9%
7 France 2 0.5%
8 Poland 2 0.5%
9 United Kingdom 2 0.5%
10 Macao 2 0.5%
11 1 0.2%
12 Moldova, Republic of 1 0.2%
13 Hong Kong 1 0.2%