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  3. Vibrating Rubber Cellphones Vibrating rubber cellphones could be the next big thing in mobile communications. They allow peo

Vibrating Rubber Cellphones Vibrating rubber cellphones could be the next big thing in mobile communications. They allow peo

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问题                     Vibrating Rubber Cellphones
    Vibrating rubber cellphones could be the next big thing in mobile communications. They allow people to press the phone to transmit vibrations along with their【C1】______words. According to a research team at the MIT Media Lab in Cambridge, Massachusetts, the idea will make【C2】______more fun.
    Many mobile phones can already vibrate instead of ringing【C3】______you do not want people to know you are getting a call. But these【C4】______are too simple for subtle(敏感的)communication,【C5】______Angela Chang of the lab’s Tangible Media Group. "They’re either on or off," she says.
    But when you hold Chang’s rubber 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(传感器), 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 speed【C10】______on how hard you squeeze.
    Chang says that within a few minutes of being given the phones, students were using the vibration feature to【C11】______emphasis to what they were saying.
    Over time, people even began to transmit their own kind of ad hoc(特别的)"Morse code", which they would repeat back to show they were【C12】______what the other person was saying. Chang thinks "vibralanguages" could function for the same【C13】______as texting: sometimes people want to communicate【C14】______without everyone nearby knowing what they’re saying. "And【C15】______actually being able to shake someone’s hand when you close a business deal," she says.
【C3】
选项 A、since
B、where
C、though
D、when
答案D
解析 此题考查从句，when引导条件状语从句。
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