The third paragraph is mainly about ________. A) the development of babies’ early forms of language B) the difficulties of babies in learning to speak C) babies’ strong desire to communicate D) babies’ intention to communicate
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【简答题】下列四个选项中千分尺读数正确的是( )。A. { A.5.500mm } B. { B.5.56mm } C. { C.5.85mm } D. { D.5.455mm }