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 156 59.5%
2 United States 56 21.4%
3 Germany 34 13%
4 Netherlands 4 1.5%
5 Singapore 2 0.8%
6 Hong Kong 2 0.8%
7 France 2 0.8%
8 Australia 2 0.8%
9 Canada 2 0.8%
10 Moldova, Republic of 1 0.4%
11 South Africa 1 0.4%