—How beautiful our hometown is! —Yes, trees and flowers____everywhere.[ ]A. can be seenB.can seeC.be

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• Whereyour cousin? [ ]A.does,from B.is,come from C.is,from D.are,from-七年级英语
• 如图表示的是某生态系统的部分组成，请据图回答：（1）图中太阳光、空气属于生态系统的______因素．（2）图中属于生态系统中生产者的是______．（3）图中属于分解者的是______．（4）螳螂-生
• 单句改错(每句均有一处错误)。1. My uncle has become a Party member for ten years.2. Have you gone to the Great Wal
• John, you play with the knife, or you hurt yourself.A．won’t; can’tB．mustn’t; mayC．shouldn’t; must D．
• 如图是某一农田生态系统示意图，根据图回答下列问题：（1）该生态系统中，非生物成分除了水、空气、温度外，还应该有______．（2）图中禾谷类植物通过光合作用合成有机物，为其它生-生物
• —_____ I have a ticket, please? —Sorry, sir. All the tickets were sold out ten minutes ago.[ ]A. May
• ---I argued with my best friend . what advice do you have for me? ---Well, you _________ say you are
• —______ your twin brother's name Nick? — Yes, ______ is. [ ]A. Are; he B. Is; he C. Are; it D.
• 关于植物在生物圈中的作用，下列表述不正确的是（）A．参与生物圈的水循环B．作为分解者参与生物圈的物质循环C．维持生物圈中的碳-氧平衡D．为生物圈中的其它生物提供基本的食物来-生物
• 在植物→昆虫→蛙→蛇这条食物链中，若蛇增加1g体重，至少要消耗植物（）A．1000gB．500gC．250gD．125g-生物
• __________ your new pen pal like?[ ]A. WhatB. What'sC. How isD. How does-八年级英语
• 某个生态系统中的生物有：草、虫、鸟和鹰，其物质和能量流动方向正确的是（）A．草→虫→鸟→鹰B．草←虫←鸟←鹰C．虫→草→鸟→鹰D．鸟→虫-→鹰→草-生物
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• 生物圈中不可缺少的生物是（）A．绿色植物、动物B．绿色植物、细菌和真菌C．绿色植物、人类D．动物、细菌和真菌-生物
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• – I wait for him here? - NO , you needn’tA．MayB．MustC．CanD．Shall-八年级英语
• 据调查，某草原生态系统生活着如图所示的一些生物，请回答以下问题：（1）水、空气、阳光和土壤等属于该生态系统中的______成分．（2）该生态系统能量流动是从草进行______作用，固-生物
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