题干

“读书可以改变一个人的命运”。我们要通过“阳光工程”“读书月”等活动,积极构建“学习型家庭”和“学习型社会”,切切实实地使广大群众的整体素质有一个质的飞跃。实施上述活动的原因是(  )
①文化是一种重要的社会物质力量,对社会发展产生深刻的影响
②文化的力量,深深熔铸在民族的生命力、创造力和凝聚力之中,是综合国力的重要标志
③文化不仅影响人的交往行为、交往方式,而且影响人的实践活动、认识活动和思维方式
④一定的文化对社会生产方式有重大影响,对一个人的世界观、人生观、价值观的形成有重大影响

A:①②③

B:①②④

C:①③④

D:②③④

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答案(点此获取答案解析)

D

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    Many people traveled to Las Vegas, Nevada last week for the 50th Consumer Electronics Show, or CES. The show is said to have the largest collection of new electronic devices in the world.

    The show had many examples of “smart home” devices. “Smart home” technology is designed to make life easier for people by letting computers control many things inside our homes. One such device actually begins working outside the home, when someone arrives and rings the doorbell.

    “When someone comes to your front door and rings the doorbell, the light can turn on immediately. I get a notification when I'm halfway around the world that someone came, and I can start talking to the person who's at my front door, and I can say, 'Oh, here let me let you in,' I can unlock the door for them very easily.” Said Vivint, a smart home service provider.

    One electronics maker launched a device that lets people see and interact with their animals when they are away. The device, from Petcube, lets you remotely watch and talk to your pet through a personal device, according to a company official. It can even give the pet a treat—if you approve and order it.

    For heating or cooling, there is a smart thermostat. This device can also send you a message if a big storm causes leaks of flooding. “We're trying to catch it with just a few drips before it becomes a real big problem,” said Mike Sale of iDevices.

    A concern for many homeowners is the possibility that someone else might find a way to attack these smart home devices. An official from Vivint said his company is sure that only owners of the home can gain use of information on the devices. Warren Katz from iDevices said his company employs engineers from the defense industry to help prevent hacking.