一道完形求速度,在等When you are in a very dangerous situation and fee
一道完形求速度,在等
When you are in a very dangerous situation and feel afraid ,the body automatically produces a chemical calledadrenalin in the blood.With adrenalin in the blood system,
youactually feel stronger an stronger and are 37 to fight or run away.
37.A.ready B.unable C.afraid D.anxious