搜题
问题   更新时间2023/4/3 12:59:00

4. (单选题)
A baby’s first noises are ________.

(本题1.0分)
A、 an expression of his moods and feelings 
B、 an early form of language
C、 a sign that he means to tell you something 
D、 an imitation of the speech of adults

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