Eating an apple a day doesn&39; t keep the doctor away, but it does reduce the amount of trips you make to the drug store per year. That &39; s according to a new study that investigates whether there&39; s any truth in the old saying.A team of researcher

题目

Eating an apple a day doesn&39; t keep the doctor away, but it does reduce the amount of trips you make to the drug store per year. That &39; s according to a new study that investigates whether there&39; s any truth in the old saying.

A team of researchers led by Dr Matthew Davis, of the University of Michigan School of Nursing,asked 8,399 participants to answer survey questions about diet and health. A total of 753 were apple eaters, consuming at least 149g of raw apple per day. The remaining 7, 646 were classed as non-apple eaters. When both groups answered questions on trips to the doctor and trips to the drug store per year,the apple eaters were found to be 27% less likely to visit the druggist for drugs.

Trips to the doctor were not significantly affected by apple consumption, though. "Evidence does not support that an apple a day keeps the doctor away. However, the small number of US adults who eat an apple a day does appear to use fewer prescription medications," the study concludes.

Apple eaters were also found to be less likely to smoke and be more likely to have a higher educational attainment than non-apple eaters. While apples do not compete with oranges, they docontain some immune (免疫的) system-increasing vitamin C, which may be why apple-eaters visit the druggist less. With over 8mg of vitamin C per medium-sized fruit, an apple can provide roughly 14% your daily recommended intake.

Previous studies have also linked apple consumption to a lower risk of Type 2 diabetes (二型糖尿病) ,improved lung function and a lower risk of colon (结肠) cancer.

44. How many non-apple eaters answered survey questions in the research?

A.149

B.7,646

C.753

D.8,399

What is the conclusion of the study?A.Apple consumption has greatly reduced US adults' trips to the doctor

B.An apple a day does keep the doctor away

C.Apples are far more nutritious than oranges

D.A small number of US adult apple eaters tend to take less medicine

What can we learn from the passage?A.Apples are better than oranges

B.Apples do have some vitamin C to increase the immune system

C.Apples can help cure certain diseases

D.Apples can provide people with sufficient daily intake of energy

What can be described as the writing style of this passage?A.Objective

B.Creative

C.subjective

D.persuasive

请帮忙给出每个问题的正确答案和分析，谢谢！

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2.为使下列程序的正确输出结果为： Now is 2004-7-6 12:12:12 那么应该在程序划线处填入的语句是( )。 #include ＜iostream＞ using namespace std; class TIME; class DATE { public: DATE(int y=2004,int m=1,int d=1) { year=y; month=m; day=d; } void DateTime(TIME &t); private: int year,month, day; }; class TIME { public: TIME(int h=0,int m=0,int s=0) { hour=h; minute=m; second=s; } ______________; //将类 DATE 中成员函数 DateTime 声明为类 TIME 的友元函数 private: int hour,minute, second; }; void DATE: :DateTime(TIME &t) { cout＜＜"Now is "＜＜year＜＜'-'＜＜month＜＜'-'＜＜day＜＜ ' '＜＜t.hour＜＜":"＜＜t.minute＜＜': '＜＜t.seoond＜＜'.'＜＜end1; } int main ( ) { DATE d(2004,7,6); TIME t (12, 12, 12); d. DateTime (t); return 0; }A．friend void DateTime(TIME &t);B．friend void DATE::DateTime(TIME &0;C．void DateTime(TIME &t);D．friend void DateTime(TIME &t);

3.采用高通骁龙处理器的手机是:()A.三星（SAMSUNG）S4（I9508）B.SONY-L39t（XperiaZ1）C.苹果（APPLE.iPhone5SD.SONY-M35t（XperiaSP）

4.请将香蕉banana用工具 H( )—Head( ),T( )—Tail( )从L中取出。 L=(apple,(orange,(strawberry,(banana)),peach),pear)

更多“Eating an apple a day doesn&39; t keep the doctor away, but it does reduce the amount of t ”相关问题

  • 第1题：

    ________ your mother ________ some cleaning on Sundays?

    A.Does…does

    B.Do…does

    C.Does…do


    参考答案：C

  • 第2题：

    4．—_________ Mike________ his homework in the evening?

    —No，he doesn't．

    A． Do；does

    B． Does；do

    C． Do；do

    D． Does；does


    正确答案：B
    4.B【解析】考查实义动词的疑问式为“Does+主语+do，故选B。

  • 第3题：

    I did not mean____anything,but those apples looked so good I couldn’t resist___one.

    A.to eat…trying
    B.to eat…to trying
    C.eating…to try
    D.eating…to trying

    答案：A
    解析：

  • 第4题：

    为了使程序的输出的正确结果为： Now is 2004．7.10 10：10：10． 那么应在下列程序划线处填入的正确语句是( )。 那么应在下列程序划线处填入的正确语句是( )。 #include ＜iostream＞ using namespace std; class TIME; class DATE { public: DATE(int y=2004,int m=1,int d=1) { year=y; month=m; day=d; } friend void DateTime(DATE &d, TIME &t); private: int year, month, day; }; class TIME { public: TIME(iht h=0, int m=0,int s=0) { hour=h; minute=m; second=s; } friend void DateTime(DATE &d,TIME &t); private: int hour,minute, second; }; ______________________ //函数 DateTime 的首部 { cout＜＜"Now is"＜＜d.year＜＜'.'＜＜d.month＜＜'.'＜＜d.day＜＜ ' '＜＜t.hour＜＜":"＜＜t.minute＜＜':'＜＜t.second＜＜'.'＜＜end1; } int main ( ) { DATE d(2004,7,10); TIME t(10, 10, 10); DateTime(d,t); return 0; }

    A．void DateTime(DATE &d,TIME &t)

    B．void TIME::DateTime(DATE &d,TIME &t) const

    C．friend void DateTime(DATE &d,TIME &t)

    D．void DATE::DateTime(DATE &d,TIME &t)


    正确答案：A
    解析：本题程序中，分别在类DATE和TIME中将普通函数DateTime声明为友元函数，但该友元函数的定义是在类体外进行的。友元函数是一个普通函数，它虽然可以访问类对象的私有成员，但它毕竟不是类中的成员函数，因此在类体外定义友元函数时，不需要像成员函数一样在函数名前加上“类名：：”。函数首部的其他定义照抄类中友元函数的声明。所以函数DateTime的首部为voidDateTime(DATE&d；TIME&t)，即选项A。

  • 第5题：

    Which of the following may illustrate the difference between "competence" and__________ "performance"?

    A．What a person "knows" and what he/she "does".
    B．What a person "can do" and what he/she "does".
    C．What a person "does" and what he/she "knows".
    D．What a person "does" and what he/she "can do".

    答案：A
    解析：
    考查语言学知识。competence“语言能力”，指语言使用者对于语言规则系统的潜在意识；performance“语言运用”，指在具体场景中语言的实际运用，二者对应的分别为“knows”和“does”。故选A。

  • 第6题：

    下面示例中，属于Time数据类型的是？

    A．T#1d_2h_15m_30s_45ms

    B．D#2009-12-31

    C．TIME_OF_DAY#10:20:30. 400

    D．23:10:1


    3 min

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