(单词翻译:单击)
GRE模拟题：自测试题二（6）
16.If Jones is to sing immediately before Harris sings, which of the following must be assigned to time slot 7?
(A)Harris
(B)Jones
(C)McIntyre
(D)Strapp
(E)Trevino
17.If McIntyre is to sing immediately before Strapp sings, Trevino could be assigned to which of the
following time slots?
(A)2
(B)4
(C)5
(D)6
(E)7
18.If McIntyre is assigned to time slot 4, which of the following must be true?
(A)Harris is assigned to a lower-numbered time slot than Strapp.
(B)Jones is assigned to a lower-numbered time slot than Trevino.
(C)Nelson is assigned to a lower-numbered time slot than McIntyre.
(D)Strapp is assigned to a lower-numbered time slot than Williams.
(E)Trevino is assigned to a lower-numbered time
Questions 19-22
Along a street that is currently without trees， seven trees are to be planted in the pattern
1 3 5 7
2 4 6
Where each number designates the position of a tree. No more than two kinds of trees can be planted. If maples are used， no maple can be planted adjacent to or immediately diagonally opposite another maple. Two trees are adjacent to each other if the numbers of their positions differ by two，and immediately diagonally opposite if their numbers differ by one. The following trees，of three kinds，reavailable for planting：Three red oaks Four maples Four sycamores
19.Which of the following can be the trees planted along the side of the street that has four trees， in order of their positions beginning with position 1?
(A)Maple，sycamore，maple，sycamore
(B)Maple，sycamore，red oak，maple
(C)Red oak，maple，maple，red oak
(D)Sycamore，sycamore，maple，maple
(E)Sycamore，sycamore，red oak，red oak
20.If red oaks are used，then which of the following must be true?
(A)The other trees used are all maples.
(B)The other trees used are all sycamores.
(C)The red oaks are in positions 1，2，and 3.
(D)The red oaks are in positions 3，4，and 5.
(E)The red oaks are in positions 4，5，and 6.
