指出下列句子中，哪一个划线单词的重音位置与其他划线单词不同。

1．Remember to meet me at the library in the Republic Square the day after tomorrow.

A                     B         C                        D

2． —Ask them to write a report   about the programme.

A       B          C

—OK. That's a good idea．

D

3．A person with good manners should always be polite and helpful.

A             B           C       D

4．The computer is very useful today, for example,

A                            B

the librarian can use it to help you find the books on medicine easily in the library.

C                                       D

5． At one time, there were long queues of people waiting  outside the ticket offices of CAAC．

A      B      C       D