1. Roses always provide a stunning display of color, but only those flowers that smell sweet are worth growing in a garden. Some roses have no scent. Which one the following conclusions can be properly drawn from the passage?
(A) Some flowers which provides a stunning display of color are not worth growing in a garden.
(B) All flowers with no scent provide a stunning display of color.
(c) Some flowers which are worth growing in a garden have no scent.
(D) Some roses which smell sweet are not worth growing in a garden.
(E) No sweet-smelling flower is worth growing in a garden unless it provides a stunning display of color.
A是答案。我也同意。但是D为什么不对呢。从题目看“grow in garden"是"smell sweet"的充分条件，smell sweet是grow in garden的必要条件，那么D说有一些smell sweet的玫瑰不grow in gardent也是可能的啊。
谢谢解答！
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