A:1
B:2
C:3
D:4
Linlin is often in a red skirt. She _____ like red very much.
根据材料分析下列问题:
在正方体ABCD﹣A1B1C1D1的各面的12条对角线中,与正方体的对角线A1C垂直的共有____ 条.