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 233 63%
2 United States 71 19.2%
3 Germany 37 10%
4 Netherlands 6 1.6%
5 Malaysia 5 1.4%
6 Hong Kong 4 1.1%
7 Taiwan 4 1.1%
8 Singapore 3 0.8%
9 India 2 0.5%
10 France 2 0.5%
11 United Kingdom 2 0.5%
12 Moldova, Republic of 1 0.3%