单选题 For each group of items in the following, point out which item does not fall under the same category as the rest and explain the reason in ONE sentence.

A、 ex p ensive
B、 re p eat
C、 s p ring
D、 cons p iracy[Focus on the pronunciation of "p"]

【正确答案】 B

【答案解析】解析：The pronunciation of "p" is aspirated in B, while in the other three words, "P" is unaspirated because it is after the sound /s/. (考查字母p在音位／s／后的发音)