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 109 63.4%
2 Germany 16 9.3%
3 United States 9 5.2%
4 Canada 7 4.1%
5 Netherlands 7 4.1%
6 Hong Kong 6 3.5%
7 Macao 4 2.3%
8 Taiwan 3 1.7%
9 Norway 2 1.2%
10 Russia 2 1.2%
11 France 2 1.2%
12 Brazil 2 1.2%
13 Australia 1 0.6%
14 Moldova, Republic of 1 0.6%
15 Ukraine 1 0.6%