It's very difficult _____interesting films for children.[ ]A. produce B.producing C. to come ou

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• Would you like something _____?[ ]A. drink B. drinking C. to drinkD. drinks-九年级英语
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• 对调查到的生物，可以有多种归类方法。如果按照形态结构特点，可以将生物归为___________、_________和其他生物三大类；如果按照生活环境，可以将生物归为________和_______-七
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• 到农贸市场做调查：属于蔬菜类的、水果类的、家禽类的各写出三种．-生物
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• 从生物归类的角度看，下列关系较近的一组是[]A．松和虎B．鲸和海豚C．麻雀和海带D．钟乳石和蚯蚓-七年级生物
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