My grandfather is such a forgetful person that he has to _______ many things, even his daily meals.      [      ]

A. be remembered by  

B. be reminded of  

C. be memorized  

D. be reminded

肌皮神经支配以下哪些肌肉（）

A.肱二头肌

B.肱三头肌

C.肱肌

D.喙肱肌

E.肱桡肌