问题 判断题

汽车废气排放起净化作用的三效催化净化器,总是和氧传感器同时使用的。()

答案

参考答案:对

阅读理解

When I was fourteen years old, I made my first visit to the United States. It wasn’t the first time I had been abroad (Like many English children, I had often been to France). So when I went to America I thought I would have a nice easy holiday without any language problem.

How wrong I was! The misunderstanding began at the airport. I was looking for a public telephone to tell my American friend Danny that I had arrived. A friendly old man saw me looking lost and asked if he could help me.

“Yes,” I said, “I want to give my friend a ring.”

“Well, that’s nice,” he said, “Are you getting married? But aren’t you too young?”

“Who is talking about marriage?” I replied, “I only want to give my friend a ring to tell him I’ve arrived. Can you tell me where there is a phone box?”

“Oh,” he said, “there is a phone downstairs.”

When at last we met, Danny explained the misunderstanding to me.

“Don’t worry,” he said to me, “I had so many difficulties at first. There are lots of words which Americans use differently in meaning from British people. You’ll soon get used to all the funny things they say. Most of the time, British and American people understand each other.”

小题1:The writer was from________.

A.Japan

B.France

C.America

D.England小题2:The writer thought ________ in America at first.

A.he wouldn’t have any language difficulties

B.he would be lost and he had to call the police for help

C.he wouldn’t understand the Americans

D.he would have a terrible holiday小题3:The writer wanted to ________ at the airport.

A.have a meal

B.buy a map

C.call his friend

D.find an old man小题4:According to the friendly old man, “give somebody a ring” means “________”.

A.make a telephone call to somebody

B.be going to get married

C.buy a ring for somebody

D.ask somebody to wear a ring小题5:The underlined word “they” refers to ________.

A.the old man and the boy

B.the British

C.the French

D.the Americans

单项选择题

“蓝牙”(Bluetooth)本是10世纪统一了丹麦的国王的名字,现取其“统一”的含义、用来命名意在统一无线局域网通信标准的蓝牙技术。1998年5月,爱立信、诺基亚、东芝、IBM和英特尔五家著名厂商在联合开展短程无线通信技术的标准化活动时提出了“蓝牙技术”这一概念。蓝牙技术是一种提供短距离无线传输的应用技术。这五家厂商力图使蓝牙技术能够成为未来的无线通信标准。这种全球统一的标准带来了无穷无尽的创造力。

蓝牙技术在现代通信网络的最后10米,将像一种无处不在的数字化神经末梢一样,把各种网络终端设备、各种信息化设备,都“无线”地连接起来。利用蓝牙技术,能够有效地将移动电话与笔记本电脑、掌上电脑以及各种数字化的信息设备连接起来,从而甩掉常用的有线通信电缆;同时形成一种个人身边的网络,使得身边的各种信息化的移动便携设备都能无缝地实现资源共享。

因为其开放性,蓝牙技术目前只是一个规范,还没有成为行业标准。不同品牌、型号的设备之间互通还存在一些问题。但蓝牙技术本身具有很多优势:蓝牙一般工作在不需缴纳费用的全球通用的工业、科学和医疗频段,即2.4GHz的1SM频段上;可实时进行数据和语音传输;由于采用了先进的调频和纠错编码技术,蓝牙具有很好的抗干扰能力,在配备了蓝牙的设备之间可以进行更加可靠的通信。另外,蓝牙具有很强的移植性,可应用于多种通信场合,如WAP、GSM等,引入身份识别后可以灵活实现漫游。而且蓝牙设备功耗低,容易实现,便于推广,对人体危害也小。

就目前的发展情况来看,蓝牙技术在手机、耳机、PAD、数码相机和数码摄影机等设备上都有应用,也正应用于无线设备、图像处理设备、安全产品、消费娱乐、汽车产品、家用电器等诸多领域。就蓝牙手机而言,它可以很方便地和电脑连接,实现文件互传,除了图片、铃声、和Java小游戏外,一般的文档也能传到蓝牙手机中,这样就可以把蓝牙手机当成U盘使用了。蓝牙手机能够在一定范围内与笔记本电脑无线连接,让笔记本电脑无线上网成为现实。两个同样持有蓝牙手机的用户还可以通过手机交换名片、电话和手机铃声,或者无线联机游戏。再加上相匹配的蓝牙头盔、蓝牙眼镜、蓝牙外套等一系列产品,蓝牙的无线优点可以让你尽情体验魅力时尚的新生活。

随着蓝牙技术的不断成熟,在逐渐解决制造成本、统一标准和工作的安全性三个主要问题后,各种蓝牙产品将更加深入人们的生活,改变人们的生活与工作方式,并大大提高人们的生活质量。

依据原文信息,下列推断不正确的一项是()。

A.蓝牙设备功耗低,容易实现,便于推广,在解决了所面临的标准化这一最重要的问题后,其发展和推广将是无障碍的

B.基于蓝牙技术,笔记本电脑、移动电话能够随时随地接入打印机、数码相机、记录仪、摄影机等办公设备,从而组成便捷的移动办公室

C.目前,蓝牙技术在手机、数码相机和数码摄影机等设备上的应用已经改变了人们的生活工作方式,促进了生活工作质量的提高

D.随着蓝牙技术自身的不断发展,其应用领域一定会得到不断的拓展,同时,它也会给移动通信的进一步发展带来新的动力