If the student wishes to complete both math courses before taking any English
7 S. |5 y. M+ S0 ycourses, when must she take history courses? ! |& o1 k9 D. ~8 a3 O
November, December, February, and March + p1 k" b' @- X
November, December, April, and May
6 C( x% u, A* f. ^( f December, January, April, and May
; `1 k+ Q/ u" ~/ Q, J+ ?: g3 g January, February, April, and May 6 A0 H H' f8 }" a" l0 k2 j/ a
February, March, May, and June
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答案:(D) 9 F' v3 I2 S5 }, e
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Three women-Anne, Maureen, and Fran—and two men—Ed and Marry—are the
/ z# W8 w6 {; n$ \only dancers in a dance program that consists of six numbers in this order.
& y T* {7 h. `- ?* kone—a duet; two—a duet; three-a solo; four—a duet; five—a solo; and
+ R9 j: B5 g# u# I2 [4 n) s; g+ K U3 tsix—a duet. & `2 q. O) ~8 i( Y6 j
No dancer is in two consecutive numbers or in more than two numbers.
& R5 C: `/ N/ U& b; w3 p The first number in which Ed appears in one that comes before the first number 3 y9 r) |$ x7 m+ l
in which Fran appears. # g* S8 H3 f& Y S9 R
The second number in which Ed appears is one that comes after the second number 1 h, f) F! O1 n" a( k2 V
in which Fran appears. - G* Q# G8 J* p, o9 H" C" `! l0 G
A duet consists of two men or two women or a woman and a man. 3 u) O5 M# ~3 @, q
Which of the following is a complete and accurate list of those numbers that : V5 g; d3 Q( L n
could be the last one in which Fran performs? ( P8 V/ d- q: [9 `# T
Three ; U* j% A6 Y; J: q3 _* N
Four / a. [% l$ M" \0 n% {9 t
Five
; ]8 V6 w7 |) f3 ?5 \ Three, four 6 i+ s/ c9 S5 X9 d& q# [/ _
Four, five 2 c/ X* E# r' E2 L% K3 O
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答案:(E) 3 f) {2 h& M3 [' u% L) ?4 Y
% X# s1 F3 N8 }All of Maureen’s appearances must be in duets if 4 u3 [- w% {/ @ k. O$ s
Fran is in number two
2 D6 O8 x( N; O Fran is in number five
' T/ V, @( d- B, y6 Q* i Ed is in number one
5 l& ?5 x Q% j- e4 l, q. o/ _ Ed is in number two 2 Q: d: V7 e u$ b4 ^2 W2 l
Ed is in number six
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答案:(D)
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; u* K# b2 k2 S- j4 jIf Harry is in number five, number four must consist of 0 t' h- m% x% S) T$ B. L
two women 8 ]) Q# J) M' s% N }! V
two men
. [5 W2 k; B/ |1 i9 U Ed and a woman
; B7 Q( P' [% e6 B! k+ @0 P Y Maureen and a man |' a+ Z% T8 o; [& F
Fran and a man
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: C6 F' {; x. `: m6 { x答案:(A) |