题目

下列关于细胞中有机物的说法,正确的是 A.含有元素C、H、O、N的物质是核酸、酶、果糖、脂肪 B.动物乳汁中的乳糖和植物细胞中的纤维素都属于多糖 C.淀粉、蛋白质、脂肪在氧化分解时都能释放出能量 D.核糖核酸是染色体的主要成分之一 答案:C完成句子,使改写后的句子完整,并与原句意思相符,注意每空只填一词。 1.She started dancing at the age of five.(改为同义句) She started dancing ____________ she was five years old. 2.What happened to your computer ? (改为同义句) ____________  ____________  ____________  ____________ your computer ? 3.My book is different from yours. (改为同义句) My book is ____________  ____________  ____________  ____________ yours. 4.You mustn’t eat lunch now. (改为祈使句) ____________  ____________ lunch now. 5.She often has supper after finishing her homework . (就划线部分提问) ____________  ____________ she often ____________  supper ?
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