In an even-position round, teams in position 2 and 4 play against teams positioned immediately above them.　　
When a lower-positioned team defeats a higher-positioned team, the two teams switch positions after the round is completed.

19. Which one of the of following could be the order of teams, from position 1 through position 5 respectively, after exactly one round of even-position matches if no odd-position round has yet been played?　　
(A) J , R, M, L, S　　
(B) J, R, S, L, M　　
(C) R, J, M, L, S　　
(D) R, J, M, S, L 　
(E) R, S, J, L, M

 
20. If exactly two rounds of matches have been played, beginning with an odd-position round, and if the lower-positioned teams have won every match in those two rounds, then each of the following must be true EXCEPT:　　
(A) L is one position higher than J.　　
(B) R is one position higher than L.　　
(C) S is one position higher than R.　　
(D) J is in position 4.　　
(E) M is in position 3.

21. Which one of the following could be true after exactly two rounds of matches have been played?　　
(A) J has won two matches.　
(B)L has lost two matches.　　
(C) R has won two matches.　
(D) L\'s only match was played against J.　　
(E) M played against S in two matches.

22. If after exactly three rounds of matches M is in position 4, and J and L have won all of their matches, then which one of the following can be true?　　
(A) J is in position 2.
(B) J is in position 3.　　
(C) L is in position 2.　　
(D) R is in position 1.
(D) S is in position 3.

23. If after exactly three rounds M has won three matches and the rankings of the other four teams relative to each other remain the same, then which one of the following must be in position 3?　　　
(A) J　　(B) L　　(C) M　　(D) R　　(E) S

24. If after exactly three rounds the teams, in order from first to fifth position, are R, J, L, S, and M, then which one of the following could be the order, from first to fifth position, of the teams after the second round?　　
(A) J, R, M, S, L　　
(B) J, L, S, M, R　
(C) R, J, S, L, M　　
(D) R, L, M, S, J　　
(E) R, M, L, S, J

LSAT全真题（三）SECTION 1Time-35 minutes 24 Questions

Questions 1-6　　
Seven students-fourth-year students Kim and Lee; third-year students Pat and Robin: and second-year students Sandy, Tety and Val-and only those seven, are being assigned a rooms of equal size in a dormitory. Each room assigned must have either one or two or three students assigned to it and will accordingly be called either a single or a double or a triple. The seven students are assigned to moms in accordance with the following conditions:

Lio fourth-year student can be assigned to a triple.　　
No second-year student can be assigned to a single.　　
Lee and Pobin must not share the same room 　　
Kim and Pat must share the same room.　

1.Which one of the following is a combination of rooms to which the seven students could be assigned?　
(A) two triples and one single　
(B) one triple and four singles　
(C) three doubles and a single　
(D) two doubles and three singles　
(E) one double and five singles

 
2. It the room assigned to Robin is a single, which one of the following could be true?　(A) There is exactly one double that has a second-year student assigned to it.　
(B) Lee is assigned to a single.　
(C) Sandy Fat and one other student are zseigned to a triple together.　
(D) Lexically three of the rooms assigned to the students are singles　
(E) Exactly two of the rooms assigned to the students are doubles.