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and increase their income.Her long-term vision is to promote urban-rural integration ()24.Why did Li Jing desire to start a career in her hometown?A.She received higher education.B.What she has learned could help her.C.She intended to live her dream.D.She failed to start her own business in Wuhan.25.Which words can best describe Li Jing?A.Passionate and hardworkingB.Strong-willed and competent.C.Warm-hearted and easy-going.D.Selfless and thoughtful.26.Why the incident is mentioned in paragraph 5?A.To show Li Jing's inability in potato planting.B.To prove Li Jing's success in gaining villagers trust.C.To put emphasis on the hardship of potato planting.D.To give evidence of Li Jing's efforts.27.Which of the following can be the best title?A.No Pain,No GainB.East or West,Home Is BestC.Graduates,Welcome HomeD.From the Village,for the VillagecA new color-changing ink could aid in health and environment monitoring-for example,allowing clothing that switches colors when exposed to sweat or a curtain that shifts colors if carbonmonoxide(一氧化碳)enters a room.The chemicals could be printed on anything from a T-shirt to atent.Wearable sensing devices like smartwatches use electronics to monitor heart rate,blood glucose(I),and more.Now researchers at Tufts University's Silklab say their new silk-based inks canrespond to the presence of chemicals on or around the body.The researchers had created an earlier version of the material that inkjet printers could spray onfabric,turning small items,such as gloves,into sensors.For the recent study,published online inMay in Advanced Materials,they thickened the ink with certain chemicals and then added variousreactive substances.With the new ink,they can now "easily print a large number of reactive elementsonto large surfaces,"says Fiorenzo Omenetto,a biomedical engineer at Silklab."In the case of a T-shirt,the wearer 'paints'the shirt through exercise-with colors correlatingto the acidity distribution of their sweat,"Omenetto says.He envisions using the ink to help monitorsuch activity.It could also be adapted to track environmental changes in a room,he says-or torespond to bacteria and follow disease progression.Mechanical engineer Tyler Ray of the University of Hawaii at Manoa,who was not involved第5页共12页
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