（）是指通过比较各种机械设备的投资回收期，从中选择最短者为最优方案的方法。A、投资回

Mother’s Day is coming. It is a time to let Mom know she’s special to you. Finding the right gift for Mom on that day is not always easy. We often want something personal and thoughtful. But how can we make? These following ideas may help you.

Gift of Time

Moms just want to spend time with their children so make it a Mother-Daughter/ Son Day. Spend the whole day with her. Do the things she likes doing with her.

Home Video

Take your family videos and make them a short home video. She can enjoy it whenever she misses you. Although it may take a lot of time, the process(过程) can be great fun and the result is often priceless(无价的).

Mom Mix

Make a CD for her. It’s a collection of all the songs that remind her of you and your growing up.

Write a Letter

Write a letter instead of a simple card. Write about all the good memories you have with her and all the things she has done for you.

Flowers

People send carnations(康乃馨) on Mother’s Day. You can easily spend a lot of money on them. If you have flowers in your garden, or can handpick them, it can be a great gift.

Dinner

Make a dinner and invite her over. You can also take it over to her house and surprise her. Just don’t forget to wash the dishes after the dinner.

小题1:Why is it not easy to find a right gift on Mother’s Day?

A. Because we want to save money   B. Because mothers don’t like gifts

C. Because we always want to get something special

小题2:Making a home video may be _________.

A fun   B. boring    C. easy

小题3:What does the underlined word “remind” mean in Chinese?

A 使…防范   B. 使…想起   C. 使…经过

小题4:How many kinds of ideas have been mentioned here for Mother’s Day?

A 4    B. 5    C. 6

小题5:From the passage we know ________.

A you can buy a big cake for your mom on Mother’s Day

B. writing a letter is better than sending a simple card to your mom on Mother’s Day

C. inviting your mom to eat in a restaurant is a good gift for her.

新年到了，班t数学兴趣小组的同学互赠新年贺卡，每两个同学都相互赠送一张，小明统计出全组共送了9x张贺年卡，那么数学兴趣小组的人数是5少？

采用会计电算化软件的单位，其会计档案保管期限与手工核算时相比，应该( )。

A．一致
B．有所差别
C．延长
D．缩短

关于房地产估价误差的说法，错误的是______。

A．判断评估价值误差大小或者准确性，理论上是将其与真实价值进行比较
B．估价会有误差，可用一般物理测量的误差标准来要求估价误差标准
C．所有评估价值都有误差，可以说所有评估价值都是近似值
D．估价误差应有一定限度，因此需要确定合理的误差范围

人民法院因审理案件需要向银行查询企业的存款资料时，查询人不得（）。

A.借走资料原件

B.抄录资料原件

C.复印资料原件

D.对资料原件照相