下列生物中，属于生产者的是（）A．牛B．蘑菇C．人D．向日葵-生物

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• 鲁迅先生在《从百草园到三味书屋》中写到：“不必说碧绿的菜畦，光滑的石井栏，高大的皂荚树，紫红的桑椹；也不必说鸣蝉在树叶里长吟，肥胖的黄蜂伏在菜花上，轻捷的叫天子（云雀-生物
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• 选择填空。—Hello! I ______ Jim. What's your name?— My name ______ Sally. [ ]A. am, is B. are, am C.
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• --Is the man standing outside the teacher’s office Mr. Zhou?--No, it ______ be him. He has gone to H
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