6.If Laddie is the fourth dog judged, Toppy can be scheduled into any one of how many different time slots?
(A) Two
(B) Three
(C) Four
(D) Five
(E) Six
7.If the schedule includes Laddie sometime before Pal and Pal sometime before Max, which of the following must be true?
(A) Laddie is in one of the first three time slots.
(B) Max is in one of the last three time slots
(C) Pal is in one of the first three time slots
(D) Spot is in the time slot immediately after Max
(E) Toppy is in the time slot immediately after Max
答案：AEDBC BA
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