编辑推荐您关注:
为了帮助大家有效备考GRE考试,读书人编辑整理了一些资料供大家参考:
A breeder has ten birds:
Kind Male Female
Goldfinches H J, K
Lovebirds M N
Parakeets Q, R, S T, W
The breeder exhibits pairs of birds consisting of one male and one female of the same kind. At most two pairs can be exhibited at a time; the remaining birds must be distributed between two cages. The breeder is constrained by the following conditions:
Neither cage can contain more than four birds.
Any two birds that are both of the same sex and of the same kind as each other cannot be caged together.
Whenever either J or W is exhibited, S cannot be exhibited.
(13). Which one of the following is a possible assignment of the birds?
First Cage Second Cage Exhibition
(A) H, M, N J, K, S Q, R, T, W
(B) K, M, Q N, R, W H, J, S, T
(C) K, Q, S R, T, W H, J, M, N
(D) H, J, M, R K, N, S, W Q, T
(E) H, J, M, R, W K, N, S Q, T, W
(14). Which one of the following lists two pairs of birds that the breeder can exhibit at the same time?
(A) H and J; M and N
(B) H and J; S and T
(C) H and K; M and N
(D) H and K; R and W
(E) M and N; S and W