题目内容
on()方法在被选元素及子元素上添加一个或多个事件处理程序。
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Complete the following passage with the words given below. Each word may be used only once.culturalextremelyThroughdeliveredsocializepushinggenerationstudyidentityreleasedcoinedeitherbringingpermanentlywhetherBeing sent to your bedroom used to be a punishment: now it's a teen dream. ①____________ personal computers, mobile phones and gaming consoles, teenagers are spurning(对...不屑一顾) antisocial angst(焦虑不安，烦恼) for a culture of "connected cocooning(茧式生活)".It's a phrase ②____________by music channel MTV to describe how the current 16-to-24-year-old "MTV generation" is ③_____________ plugged into a network of digital devices, ④__________ the world to their fingertips in a way no previous ⑤ _______________ has ever experienced.Such limitless communication is having a revolutionary impact on the way young people interact, ⑥ ____________, work and play. This tech-savvy(技术通) teen bribe is united as never before, with the lonely search for ⑦ __________set to become a vision of the past."Technologies certainly do create ⑧ __________ phenomenon, ⑨ __________for good or for ill," says Windsor Holden, senior analyst at Analysys. "Young people have seen all these different f acilities, adapted them and changed the means of communication."MTV's recently ⑩ _________Generations report on the lives of the MTV (ages 16 to 24) and VH1 (ages 25 to 44) generations defines how technology has driven differences between these age groups.
Complete the following sentences with the words or phrases given below. Change the form if necessary.relevant typical in terms offuel achieveacquirefeature excel tend to stay away from1. This painting is fairly __________ of his early work.2. __________quality ingredients, this is the best ice cream you can buy.3.The business was __________ from Owen four years ago.4.Summers in the north__________ be cooler and drier than in the south.5.Once we have the__________ information,we can make a decision.6.Swimmers have been told to___________the beach following a shark attack last week.7.Students with good communication skills will have a better chance to__________ at work.8. The software division expects to __________ its sales targets this year.9.Each room in this building has its own special__________ .10.The area's rich natural resources have long________ the Russian economy.
缓冲溶液是一种能够消除外来酸碱影响的溶液
强酸强碱的浓度很大时，它也能抗少量的酸或碱，所以也具有缓冲作用
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