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Two collectors, Frank and Gloria, are each selecting a group of three ) I$ R+ j4 E& F8 W1 d1 w! N8 x
wildlife prints from a group of seven prints—T, U, V, W, X, Y and Z. No 1 c- ^! O. H0 @; }
print can be in both groups. The selections made by Frank and Gloria are
- s O, m4 w9 C/ ]! }# H5 esubject to the following restrictions: ' x$ H; G9 S/ w) b, j
If U is in Frank’s group, W must be in Gloria’s group. ) ?; G2 P/ R+ G% I+ A
If X is in Frank’s group, Z must be Gloria’s group.
$ u7 @) Q! h+ Y5 j: O T and Z cannot be in the same group.
3 u% h3 v5 N) Z! l& \ W and Y cannot be in the same group. ; E$ ]" D& ^- s- B
If X is in Frank’s group, any of the following could be in Gloria’s group
: l7 m! a w9 z0 s A3 A6 H tEXCEPT 3 Q/ \" x: P: j8 _: o
T
, B- r6 \: u H5 S7 Y U 8 }7 q3 W+ s( \8 r, L1 I& T
V 9 _# b8 T9 t Y$ k' w5 c% T
W 1 Y1 v& D" S- b7 n: z; D0 @ K8 e5 g. M
Z 9 i, _9 P: _6 b
& s) |: q" F: ]
———————————————————————— 2 g! l) @* d0 h4 X
答案：(A)
8 s6 [( ?" g6 f$ k8 U9 i
% s$ Y" c, F2 }" Z* i( V* ?Which of the following pairs of groups selected by Frank and Gloria conform 7 ~) p) n1 h/ T
to the restrictions? - u' ^6 E" l; ~; f7 e. t
Frank Gloria ) ]6 f$ \- [# W3 ~: T, m- }
T, U, V W, X, Y 5 F$ a! F1 {% R6 L/ I! f! L7 p' C# s
T, U, Z V, W, X,
' L/ v& B/ |) N" Y& p8 u+ [6 M U, X, Z T, W, Y
# [$ P6 A; h" F$ p5 p8 n0 J% k V, W, X U, Y, Z
, U2 y2 S7 a! B+ U1 ~" d W, Y, Z T, U, X ) k* q. Q$ N6 u# B; B# h# |" B3 m9 |
2 ?5 u, |: ]0 t! t6 z
————————————————————————
+ n3 r( n+ E" W+ D- P- ^6 m- e答案：(D)
6 u- ~4 U5 P. s+ m, t% r. f; Y
( j: N6 c M6 t* n: {If U is in Frank’s group, which of the following is true? + o" d2 P9 A$ d# c& N4 k( M
T must be in Frank’s group. . Z5 X m8 T1 U0 j6 E T2 m) h
Y must be in Frank’s group. $ ]0 C0 ^/ X) o- O0 { T: k
V must be in Gloria’s group.
. N# [2 [- L2 Q4 o- I X cannot be in Frank’s group.
6 V a8 s; f) O- _! {8 q4 P& N. d Y cannot be in Gloria’s group. , m/ }" ?4 A e4 Y4 z
5 @3 h. L% b$ b6 S/ X! G
———————————————————————— 8 Z4 R8 X! t. @; ^. g( f
答案：(E)
' h- L: E( Z2 S: C6 h1 H
* m( a' X' R, N d. u( [% GIf U and X and in Frank’s group, Gloria’s group must consist of
0 A& } M* S( ?/ J- z T, W, and Y
* j8 p9 X$ }3 v2 k! c T, Y, and Z # r# [) y2 ]2 w
V, W, and Z
8 p/ I; Y* X! Y V, Y, and Z 5 p& J i/ P: U
W, Y, and Z
3 z1 @% Y$ q9 t 3 P1 J; f/ ^( K* y5 f( v
———————————————————————— 8 u P% u3 ]+ U- u$ z
答案：(C)
. }! S( V& h& q) k9 F ) V! ^6 g, D% f& K; T( ]$ x
If T is in Gloria’s group, which of the following is true? ) ~/ C9 P# K2 H. l. A
U cannot be in Frank’s group.
6 l6 A* k; R" n& x9 D1 t+ Q X cannot be in Frank’s group.- * B3 n* ?# ?, Z% ^# X
Y cannot be in Gloria’s group.
: I& z" m) X% e7 a8 } Z must be in Frank’s group. 9 x) ]1 W ~) E! w& M) ^
Z must be in Gloria’s group. 0 S0 ~: f, |2 O$ C! G/ w% D
' ^( a) A+ G9 G' H# B# G) \# _5 \————————————————————————
# |7 M) y" @( U答案：(B)
2 M9 A2 {! m4 q, b5 S4 j. a8 k ; I" M' ]* F4 k( _2 [/ c
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发表于 2012-8-15 12:45:20
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