Language: Is It Always Spoken? 1 Most of us know a little about how babies learn to talk. From the time infants are born they hear language because their parents talk to them all the time. Between
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31. What is babbling?
32. At what age do most infants babble?
33. What is the full name for ASL?
34. What theory does Dr. Petitto believe about language learning?
35. Who does Dr. Petitto want to study to prove the theory?
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正确答案:31. The activity of repeating the same sounds over and over again.32. Between the ages of seven and ten months.33. American Sign Language.34. Language can be expressed in many different ways - for instance, byspeech or by sign.35. Hearing children who have one deaf parent and one hearing parent.
