问答题简答题：例举离子注入设备的5个主要子系统。

UGG boots have been a winter-weather fashion for several years now, combining function, comfort, warmth and even some style. What many UGG-enthusiasts don’t know is that their boots are a breeding ground for bacteria and cause foot problems.

Doctors believe the boots, which are particularly popular among young teenage girls, are leading to a rise in the number of people suffering pains in their feet and knees.

Dr. Ian Drysdale，head of the British College of Osteopathic Medicine，believes because the foot does not get the proper support on the inside，it will lead to more ankle，knee，hip and back problems. “These boots are not designed for outside wear. Just because something becomes a trend or fashionable doesn’t mean it’s good or right，” he said, “The particular problem with this type of footwear is that it is unsupported. It’s a slipper. You wouldn’t normally expect to be doing outdoor activities from something that’s indoor. If you decide to wear your pajamas outside all. the time, someone will come up and say it’s not a good idea. ” Dr. Drysdale explained that the feet issues become a particular problem among young teenage girls，whose bones are “ plastic ” and developing when they are growing. “ If that structure is developing in an inappropriate way,” he said, “then the ultimate structure will be deformed ”

Mike 0，NeiU, a consultant surgeon, said, “As the foot slides around, you get wear and tear (磨损）on the joints on the inside of the foot The ankle is m the wrong position, the thigh bone also changes position, and you get an abnormal movement in the pelvis, which leads to back problems. ”

UGG AustraUa₉ who makes the designer version of the boots, told The Daily Mirror that their boots are “comfort” rather than “performance” footwear and consumers should be aware of “knockoffs”（仿制品)which lack reinforced heels in their boots.

小题1:Teenage girls prefer to wear UGG boots because of the following except______

A．design

B．comfort

C．quality

D．warmth小题2:Accordi^ to Dr. Ian Drysdale，_____

A．there is a possibility that bacteria will multiply in UGG boots

B．wearing UGG boots will lead to more ankle and toe problems

C．it’s not a good idea to wear boots like UGG outside all the time

D．teenage girl’s bones are plastic enough to wear UGG boots小题3:The underlined word “ deformed” is closest in meaning to_____

A. shaped B_ strengthened C. reformed D. damaged

小题4:Which of the following can be the best title for the text?

A．Potential Harm of UGG Boots

B．The Popularity of UGG Boots

C．The Unique Design of UGG Boots

D．Benefits of UGG Boots

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例举离子注入设备的5个主要子系统。

题目：

答案：