58. The words "covered in complete darkness" underlined in Paragraph I most probably mean (A)difficult to be made (B)without any light (C)black in color (D)not known

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