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 238 56.1%
2 United States 112 26.4%
3 Germany 39 9.2%
4 Taiwan 7 1.7%
5 Canada 5 1.2%
6 Hong Kong 4 0.9%
7 Macao 3 0.7%
8 Turkey 3 0.7%
9 Russia 3 0.7%
10 Singapore 2 0.5%
11 Viet Nam 2 0.5%
12 Malaysia 2 0.5%
13 Panama 2 0.5%
14 Bulgaria 1 0.2%
15 Korea, Republic of 1 0.2%