下列属于分解者的是（）A．营寄生生活的细菌和真菌B．自养型的全部微生物C．异养生活的细菌和真菌D．营腐生生活的细菌和真菌-生物

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• ---Look! It ________be Mrs. Smith.---It _________be her. She has just gone to Shanghai.A. can; mustn
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• —Hi, I ____ Tony. _____ you Helen? —Yes, I am. [ ]A. am, Am B. am, Is C. am, Are D. is, Are -七年级英语
• 下面是生态系统的组成图解，请你补充完善：①______；②______；③______；④______．-生物
• ---Excuse me, may I take the magazine away? ---No, you ______. You ______ only read it here.A．mustn’
• According to the new traffic laws, people ______ drive after drinking wine or beer.A．wouldn’tB．could
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• 在一鱼缸内的食物链中含量最多的生物是（）A．水蚤B．藻类C．小鱼D．细菌-生物
• 根据生态学原理，要使能量流经食物链的总耗量最少，人们应采取下列哪一种食物结构？[]A．以禽类、蛋类为主B．以淡水养殖的鱼虾为主C．以谷物和植物蛋白为主D．以猪肉等家畜的肉类-八年级生物
• - Shall I tell Shirley the good news?-No, you________. I’ve told her already.A．can’tB．shouldn’tC．mus
• Does Jack want to_____ the first one to get to the top of the mountain? [ ]A. to B. to beC. being D.
• 如图为生态系统各成分之间的相互关系，据图分析，回答下列问题：（1）图中生态系统中的生产者是______．（2）图中虫和鸟是生态系统中的______．（3）如果人们大量捕杀鸟，使鸟的数量减-生物
• 生态系统中的非生物部分是指阳光、______、水．-生物
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• 下列各项中，属于分解者的是（）A．水族箱中的金鱼藻B．蚊子C．墙角的苔藓D．朽木上的蘑菇-生物
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