题目

在荔枝果肉细胞中，储存糖分的主要结构是(   )A．细胞壁                B．细胞核          C．液泡        D．细胞膜  答案：C解析:略  Would you like to live in a city where buildings turn the lights off for you, and self- driving cars find the nearest parking space themselves? Although might sound a little far from you. Irving in a "smart" city like this could happen sooner than you think.Great changes have taken place in towns that we have lived in for centuries, while completely new cities are being built. One such place is the city of Songdo. Every home there will have a "telepresence" system （ 远程遥控系统） allowing users to control the heating and locks, take part in video meetings and receive education, healthcare and government services. Around the city, escalator （ 自 动 扶 梯 ） will only move when someone is on them, and offices and schools will all be connected to the system.The great mind behind Songdo is from the company Cisco. In fact, technology companies around the world such as IBM, Siemens and Microsoft are already in the business.About 75% of the world's population will live in cities by 2050, so cities will need to be more modem to deal with the coming problems "Making cities smarter is one way out, and I think this will in tum make cities greener, " said Dan Hill, head of a research company.【1】According to the article, living in a "smart" city .A.is not a green wayB.will be far from youC.will soon become tue【2】What is Paragraph 2 mainly about?A.A city of the future.B.A meeting in Songdo.C.A plan to build a house.【3】Which company offers the great mind to build songdo?A.Cisco.B.IBM.C.Siemens.【4】Dan Hill thinks that making cities smarter is one way to .A.control the world's populationB.develop his own companyC.solve the cities' coming problems【5】Which of the following might be the best title for the text?A.Future EducationB.Smart CitiesC.Government Services