——I don’t know if he ________ tomorrow?——If it ________ , he will come.A．will come; won’t rainB．will

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• 单细胞生物如草履虫对环境的变化没有任何反应。-七年级生物
• If it ____ rain, we will play football tomorrow.A．willB．wouldC．isn’tD．doesn’t-八年级英语
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• ---What are you going to do this weekend ?--- Well, we’ll clean up the city parks ________ it rains.
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• 在草履虫培养液中加入适量碳素墨水，几分钟后将草履虫制成临时装片在显微镜下观察，被染成黑色的结构最可能是A．伸缩泡B．食物泡C．细胞质D．细胞核-七年级生物
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• 下列关于单细胞的叙述，错误的是A．整个身体由一个细胞构成B．能够完成呼吸排泄和对外界刺激发生反应等各项生命活动C．不能独立完成生命活动D．大多数在水域环境中生活-七年级生物
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• 下图是某同学在显微镜下观察到的草履虫图像，则草履虫在临时装片上的状态是-七年级生物
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