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A public health campaign _____ the number of heart disease deaths by 80 percent over the past three decades.

A.had reduced B.had been reduced

C.has reduced D.has been reduced

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閱讀下面短文,掌握其大意,然后從1—20各題所給的四個選項(A、B、C和D)中,選出最佳選項。

Though she had been in a coma(昏迷)for nearly six months, it was still a when my grandmother passed away.I was not yet thirteen when she .I'd understood that death awaited her, but in those first moments of knowing, I could not that "eventually" had finally come to pass.

Friends came to the funeral home to pay their last respects to my grandmother and to show their support for my mother.Not where to be or what to do, I stayed off to the side.The finally ended with the arrival of my friend Kelly.

Kelly and I had been friends ever since she was three and Four.We were “home" friends, the kind who rode bikes together after school, went to a KFC a few blocks away, even though we weren't allowed to leave the block.

At the funeral home, Kelly came right to me.In her hands were two packages of M&M's.Kelly knew that was one of my .We had often taken long trips to the store for .We sat in the back, eating M&M's and talking quietly.A experience had suddenly become easier to bear, with a childhood offering of chocolates and the of a devoted friend.

Trying to come up with something to offer a heartbroken person is .Kelly had understood, even at twelve, that there wasn't much she could do to reduce my pain be there with me and bring something that just might make me

Now, whenever Kelly and I find ourselves at funeral home for family member of ours, the other has always shown up M&M's, a small offering of to take the edge off the hovering sorrow.We've that when we' re old, the one who dies first will have a crazy old lady throwing M&M' s into her grave.M&M's will be significant to me.They will me that even when something as painful and powerful as comes to claim what’s most important to me, there will always be Kelly… and her chocolate.

M&M's, melt(溶解)in your , not in your hand.

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D

Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血壓) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.

Any owner will tell you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (緊張) levels and blood pressure in people - half of them pet owners –while they performed 5 minutes of mental arithmetic (算術) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don't judge.

A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about I1 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn't lose any more weight than those without dogs but, say researchers, got more exercise overall-mostly with their dogs - and found it worth doing.

1.What does the text mainly discuss?

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B.How pets help people calm down.

C.People's opinions of keeping pets.

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B.he has less stress of work

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B.They become more patient.

C.They are less nervous.

D.They are in higher spirits.

4.The research mentioned in the last paragraph reports that

A.people with dogs did more exercise

B.dogs lost the same weight as people did

C.dogs liked exercise much more than people did

D.people without dogs found the program unhelpful

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