就是在149页上的第一题,也就是1997年10月考试题的第19题。我自己做了半天,觉得没有一个是正确答案。因为在这条题的题目里有说,No two candidates will speak in the same time slot as each other at any meeting。 这个不是已经限定了,没有两个候选人是在两个会议上同一个位置演讲的,所以,选项D也不是正确的,因为R和S在同一个位置演讲了。
Wrong. The stimulus says "at any meeting" = at each meeting. Meaning that only one candidate talks at a single time slot. Or no two candidates share the same time slot.
Your understanding is wrong. Pay attention to the phrase "the same ... as ... ".