美国GRE出国考试的试题:美国GRE北美试题14
2011-09-27 16:23:00   来源：作文地带整理    双击单词自动翻译

　　The workweek in a small business in a five-day workweek running from Monday through Friday. In each workweek, activities L, M, N, O, and P must all be done. The work is subject to the following restrictions:

　　L must be done earlier in the week than O and earlier than P.

　　M must be done earlier in the week than N and earlier than O.

　　No more than one of the activities can ever be done on any one day.

　　1. Which of the following is an acceptable schedule of activities with the activities listed from left to right in the order from Monday through Friday?

　　(A) L, M, N, O, P

　　(B) M, N, O, N, M

　　(C) O, N, L,, P, M

　　(D) P, O, L, M, L

　　(E) P, O, L, M, N

　　2. Which of the following pairs of activities could be done on Monday and Tuesday, respectively, of some week?

　　(A) Land O

　　(B) M and L

　　(C) M and P

　　(D) N and O

　　(E) O and M

　　3. If P is earlier than M on the schedule for some week, which of the following must also be true of that schedule?

　　(A) L is earlier than M.

　　(B) N is earlier than M.

　　(C) N is earlier than O.

　　(D) O is earlier than L.

　　(E) O is earlier than P.

　　4. If P and N are done or Thursday and Friday, respectively, which of the following must be true?

　　(A) L is done on Tuesday.

　　(B) L is done on Wednesday.

　　(C) M is done on Monday.

　　(D) O is done on Tuesday.

　　(E) O is done on Wednesday.

　　5. Which of the following could appear on the schedule for some week?

　　(A) L on Friday

　　(B) M on Thursday

　　(C) N on Monday

　　(D) O on Monday

　　(E) P on Tuesday

　　6. The one day of the week for which any one of the five activities could be scheduled while still allowing the other four activities to be scheduled is

　　(A) Monday

　　(B) Tuesday

　　(C) Wednesday

　　(D) Thursday