—I felt rather hot. Would you mind my opening the window?

—                  .           [ ]

A. Not at all                

B. Yes, of course not

C. No, I would                

D. No, it'll do

下列关于熊猫的结构层次，正确的是：                                  (    )

A. 细胞→组织→器官→系统→熊猫     B. 细胞→器官→组织→系统→熊猫

C. 细胞→组织→器官→熊猫           A. 细胞→器官→系统→熊猫