The only purpose for which a particular type of tape is needed is to hold certain surgical wounds closed for ten days—the maximum time such wounds need tape. Newtape is a new brand of this type of tape. Newtape’s salespeople claim that Newtape will improve healing because Newtape adheres twice as long as the currently used tape does.

Which of the following statements, if true, would most seriously call into question the claim made by Newtape’s salespeople?

(A) Most surgical wounds take about ten days to heal.

(B) Most surgical tape is purchased by hospitals and clinics rather than by individual surgeons.

(C) The currently used tape’s adhesiveness is more than sufficient to hold wounds closed for ten days.

(D) Neither Newtape nor the currently used tape adheres well to skin that has not been cleaned.（C）

(E) Newtape’s adhesion to skin that has been coated with a special chemical preparation is only half as good as the currently used tape’s adhesion to such coated skin.

C是weaken，能 理解，但E是不是weaken呢？Newtape’s salespeople claim that Newtape will improve healing ，E也是反对这句话的呀。

谢谢！

偶觉得e有两个地方与题目讲的不是一回事：skin不等同于wound,题目讲的是时间的长短，而e讲的是好坏，题目对时间的长短和好坏之间的关系并没有描述。