在下列哪种疾病情况下基础代谢率降低

A．发热

B．糖尿病

C．甲状腺功能亢进

D．红细胞增多症

E．甲状腺功能低下

Her hands________rough.She must have done a lot of heavy physical work.[      ]

A. were felt  

B. are felt

C. are feeling  

D. feel