下列各项，不属于实证与虚证鉴别要点的是（）。

A.病程的长短

B.体质虚弱与壮实

C.精神萎靡与兴奋

D.疼痛喜按与拒按

E.面色苍白或通红

_______ our food ________,we had to walk to a village for help.

A．Since;runs out

B．Because;run out

C．With;running out

D．For;running out