【单选题】The little boy had three ______ for breakfast. [ ]
【单选题】There was _____ else at home that day, so the little boy had to look after himself. [ ]
【单选题】The little boy had had a long day; he was felling drowsy .
【单选题】Since the little boy had no previous convictions , what should the police do with him?
【单选题】_____ alone in the large house, the little boy had to learn to survive by himself. [ ]
【单选题】血清中某些酶活性升高的原因是:
D.
摄取某些维生素过多引起组织细胞内的辅酶含量增加
【单选题】血清中某些酶活性升高的原因是
D.
摄取某些维生素过多引起组织细胞内的辅酶含量增加