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• 以下内容中，不属于细胞学说的是[]A．细胞是一个有机体，一切动植物都是由细胞发育而来的B．细胞中只有细胞膜、细胞质、细胞核，没有其他物质C．细胞有它自己的生命，又对生物整-高二生物
• Months ago we sailed ten thousand miles across this opensea, which _____ the Pacific, and we metno s
• 下列哪项不是细胞学说的主要内容[]A．一切动植物由细胞及其产物构成B．细胞是生物体相对独立的单位C．细胞可以产生细胞D．细胞分为细胞质、细胞核和细胞膜三大部分-高一生物
• Nowadays, too many children________TV. That's bad for their eyesight and TV also keeps them fro
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• 施莱登和施旺共同提出[]A．提出细胞学说B．构建磷脂双分子层模型C．提出进化学说D．发明显微镜-高一生物
• 19世纪30年代创立的细胞学说的最主要的意义是[]A．证明病毒不具有细胞结构B．使人们对生物体的结构认识进入微观领域C．证明生物之间存在亲缘关系D．发现动植物细胞的不同之处-高一生物
• 最先观察和记载植物细胞结构的学者是[]A．英国植物学家布朗B．英国自然科学家虎克C．荷兰生物学家列文·虎克D．德国植物学家施莱登-高一生物
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• The other day we traveled fifteen hours to a magic country. which America,and we enjoyed ourselvesth
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• — How was the journey? — Tiring! I caught the train at the last second but all the seats _____. I st
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• Experiments of this kind ________ in both the U. S. and Europe well before the Second World War.[ ]A
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