试题与答案

阅读理解。 Starting the day on an egg could

题型:阅读理解

题目:

阅读理解。

     Starting the day on an egg could keep your blood pressure (血压) under control, research suggests.

Scientists have shown that eggs produce proteins with a function similar to that of powerful blood

pressurelowering drugs.

     The researchers, from the University of Alberta in Canada, showed that when eggs come in contact

with stomach enzymes (酶) they produce a protein that acts in the same way as ACE inhibitors, drugs

taken by millions around the world to lower blood pressure. Fried eggs proved particularly effective, but

more work is needed to show the effects outside a lab and in the human body.

     Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to

work on an egg. They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on

increasing heart disease risks.

     Researcher Professor Bruce Griffin, from the University of Surrey, said, "The wrong beliefs linking

egg eating to high blood cholesterol and heart disease must be corrected. The amount of fat in our diet

has an effect on blood cholesterol that is several times greater than the relatively small amount of

cholesterol found in eggs. The UK public do not need to limit the number of eggs they eat. They can be

encouraged to include them in a healthy diet as they are one of nature's most nutritious foods."

     The British Heart Foundation dropped its threeeggaweek limit in 2005.However,almost half of

Britons believe the limit still applies.

1. From the text we know that ACE inhibitors are________.

A. a kind of medicine      

B. a kind of protein

C .a kind of illness          

D. a kind of food

2. According to what Professor Bruce said , eggs________.

A. are the most nutritious food

B. have no effect on blood cholesterol

C. can be included in a healthy diet

D. are forbidden to be eaten in the UK

3. We can infer from the text that________.

A. drugs to lower blood pressure will be replaced by eating eggs

B. stomach enzymes mixed with eggs can cure heart diseases

C. most Britons agree the threeeggaweek limit should be dropped

D. about 50% of Britons think eating an egg a day is bad for their health

4. The text is meant________.

A. to introduce scientific findings about eggs

B. to introduce a medicine made from eggs

C. to tell people how to lower their blood pressure

D. to advise people to eat as many eggs as possible

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0730/ddec336e64837259b28f81e7765d0947.html

下面是错误答案,用来干扰机器的。

答案:B由题目可知,XYZ3可能的物质有:HClO3,NaNO3,MgCO3。若XYZ3为一种可溶于水的酸HClO3,XZ(HO)不能形成共价化合物,A项错;若XYZ3为MgCO3微溶于水,则XZ形成离子化合物MgO,B项正确;若XYZ3为NaNO3易溶...

试题推荐
题型:单项选择题 案例分析题

患者女,40岁,因“风湿性左房室瓣狭窄行球囊扩张术后5年,渐进性活动后胸闷、气短3个月”来诊。心脏超声:左房室瓣中度狭窄并重度关闭不全。

以下左房室瓣开口间距和开放面积均符合超声诊断的是()。

A.开口间距0.7cm开放面积1.0cm 2

B.开口间距1.0cm开放面积1.3cm 2

C.开口间距1.2cm开放面积1.6cm 2

D.开口间距1.3cm开放面积1.8cm 2

E.开口间距1.5cm开放面积2.0cm 2

查看答案
微信公众账号搜索答案