单项选择。Here some pencils for every teacher now. [ ]A. wasB. wereC. isD. are -七年级英语

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• 图中箭头表示能量、物质的转化或流向．其中正确的是（）A．B．C．D．-生物
• They ______ friends since they met for the first time.[ ]A: have madeB: made C: have been D: were -八
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• —Can you speak English, Mr Wang？—Yes, but only＿＿＿A. little B. a little C. a lot-九年级英语
• Don’t worry. There’s still ________ time _________.A．few, leftB．a few, to leaveC．a little, leftD．a l
• 图是大金湖湖泊生态系统，请据图回答问题：（1）影响该生态系统生物生存的非生物因素有______（举一例）；（2）该生态系统中的生产者有______，未标注的生物部分是______；（3）螺蛳的-生物
• 在草原生态系统中，下列哪条食物链的加强有利于增加鹰的数量（）A．草类→鼠→鹰B．草类→鼠→蛇→鹰C．草类→蝗虫→青蛙→蛇→鹰D．草类→食草昆虫→青蛙→蛇→鹰-生物
• 在一个处于相对平衡状态的封闭生态瓶内，要使各种生物长时间存活，最重要的条件是提供（）A．太阳能B．足够的有机物C．充足的氧气D．水分-生物
• 近几年海洋石油泄漏事件多次发生，给海洋环境造成严重污染．科学家们利用一些细菌来清除洋面泄漏的石油以便净化海洋环境．这些能净化环境的细菌属于（）A．生产者B．消费者C．分解者-生物
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• A group of young men hope that getting this kind of job will finally be the ticket to success.A．road
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• --- Linda late for school. --- But she arrives on time at present.A．used to beB．used to beingC．is us
• 生产者和分解者之间没有任何关系______．-生物
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• — You study ______ hard _______ you’re sure to pass the exam.— Thank you for saying so. A. enough… t
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