2014GRE阅读自测试题

　　Questions 3-8 On each day of the Monday through Friday workweek，exactly two of three employees-George， Hilda， and Irene-must remain on duty in the office to answer tele-phones during the noon to 1 p.m. lunch break. In the scheduling of telephone duty the following constraints must be met： Hilda and Irene have telephone duty together on

　　Tuesday. George and Hilda have telephone duty together on

　　Thursday.No one can have telephone duty on more than four of thefive days of the week.

　　3.Which of the following can be the weeks telephone duty schedule? Monday Tuesday Wednesday Thursday Friday

　　 George George Hilda George Hilda Hilda Irene Irene Hilda Irene

　　 George Hilda George Hilda George Hilda Irene Hilda Irene Irene

　　 George Hilda George George George Irene Irene Hilda Hilda Hilda

　　 Hilda Hilda George George HildaIrene Irene Hilda Hilda Irene

　　 Hilda Hilda George George George Irene Irene Hilda Irene Irene

　　4.If Hilda has telephone duty for exactly two days of the week， which of the following must be true?

　　George and Irene have telephone duty together on Wednesday.

　　George and Hilda have telephone duty togetheron Friday.

　　Hilda and Irene have telephone duty together on Wednesday.

　　Hilda and Irene have telephone duty together on Friday.

　　Irene has telephone duty for exactly three days of the week.

　　5.If Hilda and Irene have telephone duty together on

　　Monday and on Wednesday， which of the following

　　must be true?

　　George and Hilda have telephone duty together

　　on Friday.

　　George and Irene have telephone duty together

　　on Friday.

　　George has telephone duty on exactly three of

　　the days of the week.

　　Hilda has telephone duty on exactly three of the

　　days of the week.

　　Irene has telephone duty on exactly three of the

　　days of the week.

　　6.If George and Hilda have telephone duty together on

　　Monday and George and Irene have telephone duty

　　together on Friday， any of the following can be true

　　EXCEPT：

　　George and Hilda have telephone duty together

　　on Wednesday.

　　George and Irene have telephone duty together

　　on Wednesday.

　　George has telephone duty for four days of the

　　week.

　　Irene has telephone duty for four days of the

　　week.

　　Hilda and Irene have telephone duty together for

　　two days of the week.

　　7.If there is one pair of employees who have telephone

　　duty together for three of the five days， which of the

　　following must be true?

　　George has telephone duty on Wednesday.

　　George and Hilda have telephone duty together

　　for three days of the week.

　　Hilda and Irene have telephone duty together for

　　three days of the week.

　　One of the three employees has telephone duty

　　for exactly two days of the week.

　　Exactly one of the workers has telephone duty

　　for exactly three days of the week.

　　8.Any of the following can be true EXCEPT：

　　One pair of employees has telephone duty

　　together for exactly one day of the week

　　One pair of employees has telephone duty

　　together for exactly four days of the week

　　The pair of employees that has telephone duty

　　together on Monday also has telephone duty

　　together on Wednesday

　　The pair of employees that has telephone duty

　　together on Tuesday also has telephone duty

　　together on Wednesday

　　The pair of employees that has telephone duty

　　together on Thursday also has telephone duty

　　together on Friday