Questions 12 to 15 are based on the passage you have just heard．-考呗网题库移动版

单选题Questions 12 to 15 are based on the passage you have just heard．

A．Whether memory supplements work．
B．Whether herbal medicine works wonders．
C．Whether exercise enhances one’s memory．
D．Whether a magic memory promises success．

参考答案A

解析:听力原文：
[12]Is there really a magic memory pill or a herbal recall remedy?I have been frequently asked if these memory supplements work．You know,one of the first things I like to tell people when they ask me about the supplements，is that a lot of them are promoted as a cure for your memory．But your memory doesn’t need a cure．What your memory needs is a good work—out．So really those supplements aren’t going to give you that perfect memory in the way that they promise．[13]The other thing is that a lot of these supplements aren't necessarily what they claim to be．and You really have to be wary when you take any of them．The science isn't there behind most of them．They’re not really well—regulated unless they adhere to some industry standard．You don’t really know that what they say is in there，isn’t there．What you must understand is that those supplements，especially in some eastern cultures，are part of a medical practice tradition．People don’t just go in a local grocery store and buy these supplements．[14]In fact,they are prescribed and they’re given at a certain level a dosage that is understood by a practitioner who's been trained．And that’s not really the way they’re used in this country．The other thing people do forget is that these are medicines，so they do have an impact．[15]A lot of times people are not really aware of the impact they have,or the fact that taking them in combination with other medications might put you at increased risk for something that you wouldn’t otherwise being countering or be at risk for.
【解析】A。短文一开始就提到，经常有人问说话者那些记忆补充剂是否有效，即前文提到的神奇的记忆药片或是用草药召唤记忆的疗法。A是对该问题的总结

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单选题

A．They help the elderly more than the young．
B．They are beneficial in one way or another．
C．They generally do not have side effects．
D．They are not based on real science．

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单选题

A．They are available at most country fairs．
B．They are taken in relatively high dosage．
C．They are collected or grown by farmers．
D．They are prescribed by trained practitioners．

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单选题

A．They have often proved to be as helpful as doing mental exercise．
B．Taking them with other medications might entail unnecessary risks．
C．Their effect lasts only a short time．
D．Many have benefited from them．

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