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 559 81.6%
2 United States 55 8%
3 Germany 42 6.1%
4 Taiwan 7 1%
5 Australia 6 0.9%
6 Canada 3 0.4%
7 Hong Kong 3 0.4%
8 India 3 0.4%
9 Macao 3 0.4%
10 Moldova, Republic of 1 0.1%
11 Russia 1 0.1%
12 Singapore 1 0.1%
13 Ukraine 1 0.1%