搜题请搜索小程序“爱下问搜题”
问题 解答题

在一个边长为10.7九cm的正方形内剪去一个边长为7.0九cm的正方形，求剩余部分的面积．

答案

剩余部分7面积为：12.6x2-6.2x2

=（12.6x+6.2x）×（12.6x-6.2x）

=20×x.x

=11（c着2）．

写作题
假定你是苏华，你在加拿大的笔友John在做一个关于世界各国中学生如何过暑假的调查，他给你发了一封电子邮件，想了解一下有关情况，请认真阅读下面的邮件，根据信中的内容及你的实际用英语回复，可以有适当的发挥。
注意：1.字数90个左右，开头和结尾已经学好，不计入总词数。
2.回复中不得提及考生所在学校和本人姓名。
To: suhua@china.com.cn
From: johunsmith@yahoo.com.cn
Subject: summer vacation
Dear Su Hua,
I’m conducting a survey on how students spend their summer vacation in different countries. I need your help. Would you mind answering the following questions?
●       When do you start your summer vacation and how long is it?
●       How do you usually relax yourself?
●       Will you go to a summer school? Why or why not?
●       What do you want to do most? And why?
I look forward to hearing from you soon/
Best wishes,,
John
 
To: johunsmith@yahoo.com.cn
From: suhua@china.com.cn
Subject: summer vacation
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
I wish to visit you in Canada one day.
Yours,
Su Hua
 
查看答案
单项选择题

通常家用的Pentium级计算机属于( )。

A．微型机

B．小型机

C．中型机

D．大型机
查看答案