试题与答案

平衡膳食应满足下列要求,除了 A.摄取的食物应供给足量的营养素和热能以适应机体需要

题型:单项选择题

题目:

平衡膳食应满足下列要求,除了

A.摄取的食物应供给足量的营养素和热能以适应机体需要
B.食物通过合理加工烹调、储存,以减少营养素的损失,提高消化吸收率,并具有良好的色、香、味;引起食欲
C.食物应对人体无毒害;不应有微生物污染及腐败变质;无农药或其他化学物质污染;加入的食物添加剂应符合规定要求
D.营养品、滋补品等可提高机体的抵抗力和免疫力
E.摄取的食物应保持各种营养素的平衡,包括各种营养素摄入量和消耗量以及各种营养素之间的平衡。

答案:

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参考答案:A

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     Marriages improve after children grow up and move out,according to an academic study,which

suggests an "empty nest" is not always a bad thing.

     Popular wisdom has it that parents' relationships may suffer once their young fly the coop,because

they feel they have lost their purpose in life.However,a new study by researchers at the University of

California,Berkeley,has found that many couples actually feel happier when their children leave home

because they are able to enjoy spending time together.

     In total,123 American mothers born in the 1930s were tracked for 18 years and asked to rate their

satisfaction levels shortly after marrying,when they were bringing up babies,once their children reached

their teenage years and finally at age 61,when almost all had "empty nests".

     Although not all said they were happier in general,most claimed their marriages had improved since

their children had left home.Researchers believe this is not just because the spouses were spending more

time together,but because they were able to enjoy each other's company more.

     One of the participants in the study,which is published in the journal Psychological Science,said:"

Once the kids grow up...there's some of that stress removed...that responsibility removed,so things are

a little more relaxed."

    Psychologist Sara Gorchoff,who carried out the investigation,said:"The takehome message for

couples with young children is 'hang in there'. " Her coauthor Oliver John added:"Don't wait until your

kids leave home to schedule quality time with your partner."

     However,Dr Dorothy Rowe,from the British Psychological Society,said the effects of living in an

"empty nest" will depend on the parents' relationship with their children."If you're just waiting for them

to leave home so you can get on with your life,then of course you'll be pleased to see them go," she said,

"But if you've built your life around your children you'll be terribly lonely.For some parents,their world

falls apart when their children leave."

1. It is commonly believed that________.

A. marriages improve after children leave home

B. an "empty nest" is always a happy thing

C. parents' relationships may suffer once their young grow up and move out

D. parents will be pleased after their children leave home

2. When did many couples feel happier according to the study?

A. At age 61,when almost all had "empty nests".

B. Shortly after marrying.

C. Once their children reached their teenage years.

D. When they were bringing up babies.

3. Marriages improve after children fly the coop not because______.

A. many couples are able to spend time together

B. many couples are able to enjoy each other's company

C. things are a little more relaxed

D. many couples needn't work at all

4. The author of the passage tends to agree that________.

A. parents should build their life around their kids

B. parents should schedule quality time with each other before kids leave home

C. parents' relationship with their kids has no effect on marriages at all

D. parents should be pleased to see their kids leave home

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