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  3. A Doctor in the House Brushing your teeth twice a day should keep the denti...

A Doctor in the House Brushing your teeth twice a day should keep the denti...

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问题 A Doctor in the House
Brushing your teeth twice a day should keep the dentist away. But if a group of scientific researchers have their wish，it will make the rest of your body health too.___________ (46)It is one of many gadgets （小装置）proposed by engineers and doctors at the Center for Future Health in New York — others include a pair of glasses that help to jog your memory，and a home camera designed to check for cancer.
The devices seem fanciful，but the basic principles are simple. The gadgets should make it easy for people to detect illness long before it strikes and so seek treatment far earlier than normal. ___________ (47) In the long run, the technology may even prevent
illness by encouraging us to lead healthier lives.
Intelligent bandages （崩带）are a good example. Powerful sensors within the bandage could quickly identify tiny amounts of bacteria in a wound and determine which antibiotics （抗生素）would work best. ___________ (48)
Socks are long overdue for a makeover,In the future they will be able to automatically detect the amount of pressure in your foot and alert you when an ulcer （溃疡）is coming up.
All the projects should have far-reaching implications，but the biggest single development is a melanoma （黑瘤）monitor designed to give early warnings of cancer. _____ (49) If a problem is found，the system would advise you to get a check-up at your doctor's surgery.
If all this sounds troublesome，then help is at hand. ______ (50) A standard computer would be able to understand your voice and answer questions about your symptoms in plain English and in a way which would calm your nerves.
A. The cut could then be treated instantly，so avoiding possible complications.
B. The device could be used to take a picture of your body each week, then compare it with previous images.
C. A toothbrush that checks bbod sugar and bacteria while you brush is currently in development in US
选项 A.
D. Instead of relying on hi-tech hospitals，the emphasis is shifted to the home and easy-to- use gadgets.
E. Experts are also working on a “digital doctor”，complete with a comforting bedside manner.
F. Thatisgoingto bethe difficult part.
答案B
解析原文主要讲述新装置可以监视黑瘤以发现早期肿瘤，关键字是monitor，与选项中的 picture照应，因为肿瘤必须通过影像来观察，因此选择B。
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