山东省高考真题及答案解析视频,山东省高考真题及答案解析

你自己去搜一份试卷就行啦，有跟着的答案解析啊！

唉！还是给你写上吧！给分哟

考点：线性回归方程。

专题：计算题。

分析：首先求出所给数据的平均数，得到样本中心点，根据线性回归直线过样本中心点，求出方程中的一个系数，得到线性回归方程，把自变量为6代入，预报出结果．

解答：解：∵ =3.5，

=42，

∵数据的样本中心点在线性回归直线上，

回归方程 中的 为9.4，

∴42=9.4×3.5+a，

∴ =9.1，

∴线性回归方程是y=9.4x+9.1，

∴广告费用为6万元时销售额为9.4×6+9.1=65.5，

故选B

成考快速报名和免费咨询： 一、语音知识　　在下列每组单词中，有一个单词的划线部分与其他单词的划线部分的读音不同。找出这个词，并把它前面的大写字母填入左边括号里。

( )1.A.straight B.prefer C.enough D.fall

( )2.A.low B.though C.knowledge D.sold

( )3.A.calm B.hall C.talk D.ball

( )4.A.already B.each C.league D.weak

( )5.A.produce B.true C.computer D.news

二、词汇与语法知识

从每小题的四个选择项中，选出最佳的一项，并把它前面的大写字母填入左边的括号里。

( )6.Are you sure you don‘t have _______ advice to give me?I really need _______.

A.any;any

B.some;any

C.any;some

D.any;some

( )7.When we saw his face， we knew _______ was bad.

A.the news

B.some news

C.a news

D.news

( )8.The number of students in our school ________.

A.increased

B.is increased

C.has increased

D.are increased

( )9.________ your step，or you might fall into the water.

A.See

B.Watch

C.Miss

D.Look at

( )10.The meeting _______.

A.is to put off

B.is going to put off

C.is to be put off

D.will put off

( )11.Since the road is wet this morning，last night _______.

A.it must be raining

B.it must rain

C.it must have rained

D.it must have been rained

( )12.Nothing could stop _______.

A.him come

B.that the came

C.him from coming

D.him to come

( )13.The noise of desks _______ could be heard out in the street.

A.opened and closed

B.to be opened and closed

C.being opened and closed

D.having been opened and closed

( )14.The medicine will ______ you good.

A.do

B.save

C.give

D.help

( )15.A few years later，I found my hometown completely _______.

A.changed

B.changing

C.to be changed

D.to change

( )16.This novel is worthy of_______.

A.reading

B.read

C.having read

D.being read

( )17.It is very kind ______ see me.

A.from you to

B.as

C.as if

D.like that

( )18.It looks _______ it‘s going to rain.

A.that

B.as

C.as if

D.like that

( )19.The stone was so heavy that it was difficult for the old man to ______ it.

A.lift

B.reach

C.rise

D.touch

( )20.They lives ______ the other side of the road.

A.in

B.on

C.for

D.by

( )21.She can speak Japanese better than ________else.

A.the one

B.no one

C.anyone

D.another

( )22.This lesson is _______ than the last one.

A.more easier

B.more easy

C.very easier

D.much easier

( )23.Today‘s weather isn’t as cold as it was yesterday， ________?

A.wasn‘t

B.is it

C.was it

D.isn‘t it

( )24.This book is for students ______ native language is not English.

A.of whom

B.that

C.which

D.whose

( )25.You may not go out _______ your work is done.

A.before

B.until

C.where

D.as

( )26.Look what Father_______ me when he came from work.

A.brought

B.took

C.carried

D.fetched

( )27.Nobody knew _______ there.

A.how long time I had been

B.how long had I been

C.how long time had I been

D.how long I had been

( )28.The harder he studies，_______.

A.he‘ll make great progress

B.the greater progress he‘ll make

C.he‘ll make greater progress

D.the greater he‘ll make progress

( )29.________，I would have gone to see him.

A.Have I had time

B.Had I time

C.Had I had time

D.would I have had

( )30. He didn‘t go to France，the doctor suggested that he _______there.

A.won‘t go

B.not go

C.not to go

D.didn‘t go

答案：

一、语音知识

1.A 2.C 3.A 4.A 5.B

二、词汇与语法知识

6.D 7.A 8.C 9.B 10.C 11.C 12.C

13.C 14.A 15.A 16.D 17.C 18.C 19.A

20.B 21.C 22.D 23.B 24.D 25.B 26.A

27.D 28.B 29.C 30.B

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