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 180 47.7%
2 United States 139 36.9%
3 Germany 17 4.5%
4 Taiwan 10 2.7%
5 Japan 9 2.4%
6 Hong Kong 8 2.1%
7 Macao 3 0.8%
8 Singapore 3 0.8%
9 Australia 2 0.5%
10 Romania 2 0.5%
11 Switzerland 2 0.5%
12 Slovakia 1 0.3%
13 Moldova, Republic of 1 0.3%