Squishy Cellphones Add a Buzz to Calls Vibrating rubber could be the next big thing in mobile communications. They allow peo

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问题                     Squishy Cellphones Add a Buzz to Calls
    Vibrating rubber could be the next big thing in mobile communications. They allow people to communicate by squishing the phone to transmit 【C1】______along with their spoken words. According to a research team at the MIT Medical Lab in Cambridge, Massachusetts, the idea will make【C2】______more fun.
    Many mobile phones can already be made to vibrate(振动)【C3】______ring when you do not want people to know you are getting a call. But these vibrations, 【C4】______by a motor spinning an eccentric(离心的、偏离的)weight inside the device, are too crude for subtle communication, says Angela Chang of the lab’s Tangible Media Group. "They’re【C5】______on or off, " she says.
    But when you grip Chang’s prototype(样机)latex(橡胶)cellphone, your fingers and thumb wrap around five 【C6】______speakers. They vibrate 【C7】______your skin around 250 times per second. Beneath these speakers sit pressure sensors, so you can transmit vibration as well as 【C8】______it. When you squeeze with a finger, a vibration signal is transmitted 【C9】______your caller’s corresponding finger. Its【C10】______depends on how hard you squeeze.
    She says that within a few minutes of being given【C11】______the phones, students were using the vibration feature to add emphasis to what they were saying or to interrupt the other speaker. Over time, people even began to transmit their【C12】______kind of ad hoc(特别的) "Morse code" , which they would repeat back to show they were following what the other person was saying. " It was pretty easy to communicate, though we didn’t specifically pre-arrange 【C13】______, " says David Milovich, one of the students who tried out the device.
    Chang thinks "vibralanguages" could【C14】______for the same reason as texting: sometimes people want to communicate something【C15】______everyone nearby knowing what they are saying. " And imagine actually being able to shake someone’s hand when you close a business seal, " she says.
【C7】

选项 A、against
B、above
C、over
D、on

答案A

解析 经过对空格所在的句子分析我们可以看到,传声器的振动势必会对皮肤产生冲击力。这正符合“against”一词的用法。“against”在这里的意思是“与……对撞”。再如:waves dashing against the sore“拍岸的波涛”。在这里,把against换成其他介词显然是不正确的。故选A。
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