In other cultures, looking thin for a husband-to-be is not        a woman desires at all, but looking a

little overweight is considered more attractive.

A. which      

B. whether  

C. that  

D. what

有丝分裂后期细胞的主要特征是（）

A.着丝点分裂，染色单体分开

B.子染色体分别向两极移动

C.细胞内染色体数目加倍

D.纺锤体形成