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题目内容
（西安石油大学-大学英语2）
15.Which babies have trouble in learning to speak?
A) Some severely retarded children.
B) Stupid babies.
C) Deaf babies.
D) Mute babies.
A) Some severely retarded children.
B) Stupid babies.
C) Deaf babies.
D) Mute babies.
参考答案
