单选题 His speech was careful and ______ , but his words seemed to make no sense.
A. distinctive B. distinct
C. distinguishable D. diligent

【正确答案】 B

【答案解析】distinct意为“独特的，不同的”。如：There's a distinct smell of beer in the room. distinctive意为“某事或某品质在类别上的不同”。如：Beer has a very distinctive smell.