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 167 49%
2 United States 102 29.9%
3 Germany 35 10.3%
4 Taiwan 9 2.6%
5 Hong Kong 8 2.3%
6 Netherlands 4 1.2%
7 Singapore 4 1.2%
8 Thailand 3 0.9%
9 Canada 2 0.6%
10 Portugal 2 0.6%
11 Russia 2 0.6%
12 France 2 0.6%
13 Moldova, Republic of 1 0.3%