56. What is the right order of the steps in the operation? a send the cooled blood back to the brain b stop the blood to the brain c have the blood cooled down d operate on the brain
(A)a,b,c,d
(B)c,a,b,d
(C)c, b, d, a
(D)b, c, d, a

答案:登入後查看
統計: 尚無統計資料