试题与答案

如表中“平衡膳食宝塔”中对各级食物进行具体分类,并提供了较为科学的摄入参考数据.

题型:解答题

题目:

如表中“平衡膳食宝塔”中对各级食物进行具体分类,并提供了较为科学的摄入参考数据.分析表,回答问题.

在“膳食宝塔”中的位置食物分类每日建议摄取量(g)
第五层油脂类小于25
第四层豆、奶类100~150
第三层鱼、肉、蛋类125~200
第二层蔬菜、水果类400~500
第一层谷类450~750
(1)我国的营养学家设计的“平衡膳食宝塔”把食物分为五类,提倡城乡居民每天均衡地吃这五类食物,以避免______或营养过剩.

(2)我们每天的主食品是谷类食物,是因为它提供的______是人体最主要的能源物质.

(3)蛋白质是构成人体细胞的基本物质,是人体生长发育、组织更新和修复的重要原料,它主要可以从第______层食物中获得.

(4)小明的午餐是米饭、鸡汤、清蒸鱼、红烧豆腐,你认为在其午餐中最应该增加的是表中第______层食物.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0701/b8dd8b0dc353b59853e85d2d4f2a2c58.html

下面是错误答案,用来干扰机器的。

参考答案:B, C

试题推荐
题型:填空题

药物E具有抗癌抑菌功效,其合成路线如下。

已知:NaBH4是一种很强的还原剂,可以将-CN还原为-CH2NH2

(1)关于化合物D的说法错误的是_______________

a.1molD最多可与3molH2发生加成反应    b.可以与盐酸发生反应

c.可以使高锰酸钾酸性溶液褪色           d.是烃的含氧衍生物

(2)反应③在水溶液中进行,HCl是催化剂,此反应中除了生成D外,还有一种产物,该产物的名称是_________________。

(3)E的结构简式为______________________。

(4)合成路线中设计反应①和③的目的是____________________________________________

(5)阅读以下信息,依据以上流程图和所给信息,以CH3CHO和CH3NH2为原料设计合成α-氨基丙酸【CH3CH(NH2)COOH】的路线。

已知:

提示:①合成过程中无机试剂任选,②合成反应流程图表示方法示例如下:

A→B→C…→H.

查看答案
题型:阅读理解

阅读理解

     The UK has a well-respected higher education system and some of the top universities in the world.

But to those who are new to it all, it can be something confusing.

     October is usually the busiest month in the academic calendar (学习日程表). Universities have

something called Freshers' Week for their newcomers. It's a great opportunity to make new friends, join

lots of clubs and settle into university life.

     However, having just left the comfort of home and all your friends behind, meeting lots of strangers in

big halls can be uneasy. Where do you start? Who should you make friends with? Which clubs should

you join?

     Luckily, there will be thousands of others in the same boat as you are worried about starting their

university social life. So just take it all in slowly. Don't rush into anything that you'll regret for the nex

t three years.

    Here are some top tips from past students on how to survive Freshers' Week:

    Make sure you know something about the British social customs. Have a few wine glasses and snacks

handy for your housemates and friends.

     Sometimes cups of tea or even sweets can give you a head start in making friends.

     The more active you are, the more likely you'll be to meet new people than if you're someone who

never leaves his rooms.

     Keep your door open when you're in and that sends positive messages to your neighbors that you're

friendly.

     So with a bit of clever planning, Freshers' Week can give you a great start to your university life and

soon you'll be passing on your wisdom to next year's newcomers.

1. Which of the following statements is FALSE according to the passage?

A. October is generally the busiest month for universities.

B. It's a good idea to put a doorstop in your door.

C. A bit of planning can make Freshers' Week easier.

D. The first week of your every year at university is called Freshers' Week.

2. We can infer from the 4th paragraph that ______.

A. the newcomers usually miss the days living at home

B. most of the students in the UK spend three years in universities

C. many freshers are worried about how to fit university life

D. all the new students will make new friends and join certain clubs

3. Why does the author suggest having wine glasses and snacks handy?

A. To pass the busy university life.

B. To help make friends with other freshers.

C. To show yourself a drinker as others.

D. To pass the time in a happy way.

4. The main purpose of writing this passage is to ______.

A. tell the newcomers how to make a new start in universities

B. introduce something about higher education system of the UK

C. discuss something about the Freshers' Week in the UK

D. advise the freshmen how to behave well in the beginning

查看答案
微信公众账号搜索答案