Newer models of cell phones have features like______.

A . 我想搜cell phone，同时也想让touch screen出现在搜索结果当中 B . 我想搜cell phone，但不想让touch screen出现在搜索结果当中 C . 我想搜touch screen，但不想让cell phone出现在搜索结果当中 D . 我想搜touch screen，同时也想让cell phone出现在搜索结果当中

A . -40dBm signal and -90dBm noise B . -50dBm signal and -90dBm noise C . -30dBm signal and -90dBm noise D . -20dBm signal and -90dBm noise

A .  Call Admission Control B .  TAPI C .  MGCP D .  SRST

A . when B . because C . unless D . though

A . Application B . Internet C . Transport D . Network E . Data Link

A . Cisco 3825 B . Cisco 2851 C . Cisco 3845 D . Cisco 2811 E . Cisco 2821 F . Cisco 2801

A . 第50卷第1期第389-391页 B . 第50卷第1期第389-401页 C . 第150卷第2期第389-401页 D . 第125卷第2期第389-391页

A . He didn‘t like cell phones at all and thought they were poisonous, especially, for kids. B . He believed that cell phones were ruining kids‘ abilities to experience their own lives. C . He worried that his kids would play their phones in class and be absent-minded. D . He was a different kind of father who would like to raise his kids in a different way.

A . Router#copy tftp flash B . Router(config)#restore flash C . Router(config)#repair flash D . Router#copy flash run E . Router>copy start flash F . Router#copy start flash

A.in the late 1970s B.between 1955 and 1960 C.in the late 1955s D.in the early 1990s

One important 58 of a good conversation is that the words are 59 used to express thoughts and feelings. We are 60 deep thoughts and strong emotions, yet our vocabularies are not 61 for this expression, and many 62 little effort to expand that. Perhaps you see a movie that 63 you deeply, yet you have the fol-lowing conversation: "So, what did you think of the film？" "Oh, my God, it was so sad, I swear. I went through 64 a box of tissues(面巾纸). I was in tears. "This dialogue is 65 an effective way of expressing feelings. It gives no 66 of how or why the movie truly 67 you. Such commonly-used phrases are certainly not e-nough to describe a deeply moving experience. However, not only 68 try to avoid overused words, you must 69 he careful in your selection. The purpose of expan-ding vocabulary is not to use the 70 or most impressive words, but to find those best suited. What is lacking in many conversations is the ability to talk to another rather than just talking with that person. A 71 person will find that even in the most ordinary conversations. There are a thousand questions 72 to be asked if you have courage and a desire for exchange. Good conversations should not be 73 nonsense, but of a meeting of two 74 the human condition. It should bring a better understanding of others and offer a release of emotions more than drive away 75 thoughts or kill time.根据以上内容，回答题。 材料题请点击右侧查看材料问题 查看材料 A.for B.at C.under D.with

A．it requires more intelligence and education to use modern cell phones B．it takes more weeks to get familiar with modern cell phones C．modern cell phones are more complicated with many functions D．modern cell phones are more mysterious tools for people

A. It had a life—taking effect because there weren’t enough cell phones in use then． B. The increased use of cell phones then caused a life—taking effect． C. Traffic fatalities increased then because the number of eell phones in use decreased． D. Traffic fatalities decreased then because the number of eell phones in use increased．

We don't know what the effects would be on healthy human cells, Marinelli told New Scientist magazine. In the Italian study, after 24 hours 20 percent more leukemia cells died than healthy cells but longer exposure to the radio waves triggered genes in the surviving cancer cells to divide aggressively. The results of the study do not show any direct threat to human health but they support the belief of some scientists who say radiation can damage DNA and destroy the cell repair system, thus making tumors more deadly. But animal studies, including recent research by Australian scientists at the Institute of Medical and Veterinary Science in Adelaide, have shown that radiation from mobile phones does not trigger the growth of tumors. The WHO (i.e., The World Health Organization) has called for more research into the potential health hazards of mobile phones and has urged people to limit their use of them. A British government inquiry, which concluded that there was no evidence that mobile phones are a danger to health, has advised parents to discourage their children, whose brains are still developing, from using them excessively. What is the speaker's main topic？ A．Effects of using mobile phones on healthy human cells. B．Risks of developing cancer involved in the use of mobile phones. C．Damage to healthy cells caused by the use of mobile phones. D．The potential health hazards of mobile phones on humans.

A．they're popular B．they're useful C．they're cheap D．they're convenient

A．Governments must pass laws stipulating the conditions of cell phone use. B．Social norms on normal cell phone use need to be adopted. C．Laws on cell phone use must be harmonized with social norms. D．Cell phone use should continue without restrictions.

A．plasma cell B．T cell C．Antigen-presenting cells D．Macrophag E．Memory B cells

A．我想搜cellphone,同时也想让touchscreen出现在搜索结果当中 B．我想搜cellphone,但不想让touchscreen出现在搜索结果当中 C．我想搜touchscreen,但不想让cellphone出现在搜索结果当中 D．我想搜touchscreen,同时也想让cellphone出现在搜索结果当中