2012年，小敏和妈妈的年龄的乘积是259，并且两人的年龄都是质数

搜题请搜索小程序“爱下问搜题”

问题解答题

2012年，小敏和妈妈的年龄的乘积是259，并且两人的年龄都是质数．2013年小敏和妈妈的年龄各是多少岁？

答案

259=7×37；

7+1=8，37+1=38；

答：2013年小敏是8岁，妈妈是38岁．

阅读理解

阅读理解。

I have two new friends in our class. They are American girls. Their names Lucy and Lily. They are twelve.

They are twins. I am Wei Hua. I am Chinese. I am twelve, too. We are in No.6 Middle School. We are in Class

Two, Grade One. Lucy is Number 5 in Row 5. I am Number 5 in Row 8. Lily is behind Lucy. We are good

friends.

1. How old is Lily?

A. She's 11

B. She's 12

C. She's 13

D. She's 14

2. What class are the twins in?

A. They are in Class I

B. They are in Class 4

C. They are in Class 3

D. They are in Class 2

3. Are they students or teachers?

A. Yes, they are.

B. No, they aren't.

C. They are students.

D. They're teachers.

单项选择题

菱形脸修剪操作时，两侧头发要（）。

A.剪高层次

B.剪较高层次

C.剪低层次

D.略有层次