题目内容：
Vibrating Rubber CellphonesVibrating rubber cellphones could be the next big thing in mobile communications. They allow people to press the phone 1:o transmit vibrations along with their_________（51） words. According to a research team at the MIT Media Lab in Cambridge, Massachusetts, the idea will make _________（52） more fun.
Many mobile phones can already vibrate instead of ringing _________（53） you do not want people to know you are getting a call. But these_________（54） are too simple for subtle （敏感的） communication,_________（55） 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 _________（56） speakers. They vibrate_________（57） your skin around 250 times per second. Beneath these speakers sit pressure sensors （传感器）, so you can transmit vibration as well as _________ （58） it. When you squeeze with a finger, a vibration signal is transmitted _________（59） your caller's corresponding finger, its speed _________（60） on how hard you squeeze.
Chang says that within a few minutes of being given the phones, students were using the vibration feature to _________（61） 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_________（62） what the other person was saying.
Chang thinks "vibralanguages" could function for the same _________（63） as texting: sometimes people want to communicate _________（64） without everyone nearby knowing what they're saying. "And_________（65） actually being able to shake someone's hand when you close a business deal," she says.
A．taken
B．mixed
C．spoken
D．broken
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