问题 解答题
我市某镇组织20辆汽车装运A,B,C三种苹果共100吨到外地销售,按计划20辆汽车都要装运,每辆汽车只能装运一种苹果,且必须装满,根据下表提供的信息,解答以下问题:
苹果品种       A                     B                   C           
每辆汽车运载量(吨)54
每吨苹果获利(百元) 121610
(1)设装运A种苹果的车辆数为x,装运B种苹果的车辆数为y,求y与x之间的函数解析式;
(2)如果装运每种苹果的车辆都不少于4辆,那么车辆的安排有几种?并写出每种安排方案;
(3)若要使此次销售获利最大,应采用哪种方案?并求出最大利润的值。
答案

(1)y=20-2x (4≤X≤8 )

(2)

(3)应选方案一,最大利润为14.08万元。

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项.

It takes just a quick look,maybe three seconds,for someone to value you when you meet for the first time.In this short time,the other person forms an opinion about you based on your appearance,your body language and how you are dressed.

小题1:____________.This article provides some useful tips to help you.

Be on time

PIan to arrive a few minutes early.And allow some room for possible delays in traffic or taking a wrong turn.小题2:____________.

Be at ease

If you are feeling uncomfortable,this can make the other person ill at ease and that’s a sure way to create a wrong impression.If you are calm and confident,the other person will feel more at ease!

Present yourself appropriately

小题3:____________.The person you are meeting for the first time does not know you and your appearance is usually the first clue he or she has.But it certainly does not mean you look like a model.

A winning smile

“Smile and the world smiles,too.”A warm and confident smile will put both you and the other person at ease.So smiling is a winner when it comes to a great first impression.

Be open and confident

Body language as well as appearance speaks much louder than words.小题4:_____________.

Stand tall,smile,make eye contact,and greet with a firm handshake.

Be positive and polite

小题5:____________.Good manners and polite behavior help make a good first impression.One modern manner worth mentioning is to“turn off your mobile phone”.

With a little extra thought and preparation,you can make every first impression not just good but great.

A.Use body language to show your confidence.

B.On the contrary,bad manners and uneasy behavior can make a wrong first impression born.

C.Arriving early is the first step in creating a good impression.

D.Present a positive attitude,even in the face of criticism(责备)or in the case of nervousness.E.It’s important to know how to create a good first impression。

F.Of course the physical appearance matters.

G.Smiling is a univensal language in the world.

单项选择题