下列生殖方式，属于有性生殖的是（）A．试管婴儿的诞生B．克隆羊的诞生C．细菌的生殖D．植物组织培养-生物

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• 经过两性生殖细胞结合形成______，进而发育成新个体的方式叫______．-生物
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• 某果园的苹果树大都产量较低、果实品质欠佳，若要尽快更新为优质苹果树，提高果实的品质和产量，你认为最好应采取下列哪一措施？（）A．果枝扦插B．果枝嫁接C．种子繁殖D．全部换栽-八年级生物
• 小麦依靠种子繁殖，葡萄通常采用扦插、嫁接来繁殖，它们的生死方式分别属于（）A．有性生殖、有性生殖B．无性生殖、无性生殖C．有性生殖、无性生殖D．无性生殖、有性生殖-生物
• Go and get your coat. It'syou left it.[ ]A. there B. whereC. there where D. where there-高二英语
• Although he was a green hand in the research field, he succeeded ______ other more well-known expert
• —Can you describe ______ it happened? —Yes, I was riding on my bike ______ a car knocked me down fro
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• He, an average citizen, always thinks of_____ he can do more for the people. [ ]A. how B. why C. wha
• You are sure to know the result, but that's_______everybody has finished their work. [ ]A. when
• His family members gave some examples of ______ his drinking and smoking had affected the family. [
• — ________was it that David managed to get in contact with the professor?— Oh,a friend of mine helpe
• — I rang you at about nine, but there was no reply.— Oh, that was probably________I was seeing the d
• 下列植物的繁殖方法，属于有性生殖的是（）A．用月季花枝条繁殖B．用藕茎繁殖C．用秋海棠叶繁殖D．用玉米种子繁殖-生物
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• _____ worries me is _____ we're going to pay for all this.[ ]A. It; that B. That; how C. What;
• 下列关于生物生殖发育的叙述不正确的是（）A．果蝇的发育过程属于完全变态B．马铃薯的生殖方式是有性生殖C．鸟蛋的卵黄上的小白点是鉴定卵是否受精的依据D．要确保嫁接成功，须把接-生物
• 短文改错。下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。增加：在缺词处加一个漏字符号(^)，并在其下面写上该加的词。删除：把多余的词用斜线(＼)划掉-高三英语
• Nowadays many students are addicted to the Internet. That is _______ I think the whole society must
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• “麻屋子，红帐子，里面住着个白胖子”形象的描述了花生的结构，从发育过程看，“麻屋子、白胖子”分别是由（）发育来的A．珠被、受精卵B．受精卵、受精极核C．子房壁、受精卵D．子房壁-八年级生物
• —Do you think it wise for Chinese mothers to try to do everything for their children?—No, that’s ___
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• Almosteveryone has his own strengths and weakness. It isothers are weak that maybe youhave a great a
• Tom was playing computer games all night.________he was late for class. [ ]A. That's becauseB.
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• You never know_____happiness will turn up next, so grasp every chance around you. [ ]A. whenB. where
• 有些植物如桃树、杏树在春天开花时，叶子尚未长出，开花时期植株需要的能量可能来自()A．春天植株从土壤中吸收的无机盐B．春天植株从土壤中吸收的有机物C．花瓣利用太阳能进行的-八年级生物
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• — Have you finished the book? — No. I've read up to _________ the children discover the secret
• His family members gave some examples of _____ his drinking and smoking had affected the family. [ ]
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• 我区竹镇泉水桃花岛，通过多年建设已成为了远近闻名的农业生产观光园．早期的桃树苗木是用桃种子培育而成的，实际上桃树还可以芽接或压条进行繁殖．（1）用桃的种子繁殖幼苗属于-生物
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