“有心栽花花不活，无心插柳柳成荫”说明繁育柳树容易成活的方式是-八年级生物

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• 农业生产中，常见的无性生殖方式有_________、_________等。-八年级生物
• 在学习了绿色植物的相关知识后，兴趣小组对豌豆的生长过程进行了探究，如下图所示。请据图回答问题：（1）选种时，该小组同学对豌豆种子的结构进行了观察，发现胚是由胚芽、胚轴-八年级生物
• 人工营养生殖的常用方法有：___________、___________和________等。-八年级生物
• 人们获得“人工种子”所利用的生物技术是[]A．转基因技术B．组织培养技术C．动物克隆技术D．嫁接技术-八年级生物
• 要使一棵柿子树上结出两个品种的柿子，我们应采用的方法是[]A．压条B．扦插C．嫁接D．种子繁殖-八年级生物
• 繁殖优良品种的果树花卉时，为了保持这种品种的优良性状，不宜采用的方法是[]A．种子繁殖B．扦插繁殖C．压条繁殖D．嫁接繁殖-八年级生物
• 甘薯、葡萄、菊、月季等植物的栽培，常用的无性生殖方法是_______。-八年级生物
• 园丁们培育月季花常用的技术为[]A．组织培养B．扦插C．种子繁殖D．无土栽培-八年级生物
• 用一红色月季枝条做接穗，黄色月季枝条做砧木进行嫁接，嫁接上的枝条将开的花是[]A．橙色B．只有黄色C．只有红色D．既有红色又有黄色-八年级生物
• 随着科学技术的迅猛发展，植物组织培养技术已广泛应用于生产实践中。这一技术[]A．可防止植物病毒的危害，提高农业生产效率B．可培育抗病毒的植物新品种C．可有目的地改变母体的-八年级生物
• 根据所学知识，回答下列问题：（1）请写出绿色植物进行光合作用的反应式___________________。（2）“妃子笑”是优良荔枝品种，为了保持其优良性状，最好用__________方法繁殖。（3
• If you listen to English programs every day, I’m sure you’ll _______ make progress in English.A．fre
• 直供上海世博会的蔬菜有六成来自山东。按照世博会的要求，所有专供蔬菜都要达到绿色食品标准。请分析回答下列问题：（1）绿色食品是经权威机构认定并使用专门标志的安全、优质、-八年级生物
• 推广优良苹果树品种，最常用的方式是[]A．无性生殖中的扦插B．无性生殖中的嫁接C．有性生殖中的种子繁殖D．无性生殖中的出芽生殖-八年级生物
• Scientists said that the winter of 2011 was _____ cold, and in fact it was much colder than predicte
• 植物园里的几株国家二级保护植物——蕨类植物桫椤感染了植物病毒，为了培育出大量无病毒的桫椤植株，你认为应采取的方法是[]A．用带毒植株的种子培养后代B．用带毒植株无明显症状-八年级生物
• 在嫁接植物时，成功的关键是：[]A．选好砧木B．应使砧木和接穗的树皮连在一起C．选好接穗D．应使砧木和接穗的形成层紧密结合-八年级生物
• Last year John earned________his brother did，who has a better position in a bigger company.A．twice a
• (2014·山东实验中学二模)You can never be________careful，the road is icy and slippery.A．veryB．tooC．quiteD．rath
• As he works in a remote area, he visits his parents only _______ .A．anxiouslyB．occasionallyC．urgentl
• 图1是桃花的结构模式图，图2是桃的果实示意图。请分析回答：（1）从构成生物体的结构层次上分析，花和果实都属于________。（2）图中[⑤]和[⑥]组成的结构叫________，结构[④]是___-
• 分析回答下列有关植物扦插和嫁接的问题：（1）再用植物扦插繁殖时，一般茎段保留两个节，茎段上方的切口是________，下方的切口是______，对上一个节上的叶要_________，对下一-七年级生物
• 现有一种非常珍贵而又很难用种子繁殖的苗木，若让它在短时间内大量繁殖，可以采用的方法是[]A．组织培养B．扦插C．嫁接D．有性生殖-七年级生物
• (2013·沈阳二中模拟)She devoted herself________to her research and it earned her a good reputation in her f
• 梨、桃等的栽培通常用来繁育优良品种。[]A．嫁接B．种子C．扦插D．压条-八年级生物
• Maggie has been fortunate to find a job she loves; __________，she gets well paid for it. A．sooner or
• The central government plans to build a Taiwan community managed _____by Taiwan people --- and it wi
• We may find that learning a foreign language does not have to be________learning our mother tongue，
• 把紫背天葵的茎段处理后，埋入土中，一段时间能长出新的植株，所采用的这种处理技术是压条。[]-八年级生物
• Dream of the Red Chamber is ________worth ________because we can learn alot about the noble familie
• Drive ________until you come to the small town，which lies about 100 kilometers ________ London.A．no
• The new bridge is ________ the one built last year. A．three times width ofB．three times that of C．th
• There is not much time left，but________we must get there on time.A．somehowB．somewhatC．howeverD．anyho
• She sells second-hand articles at reasonably fair prices from 10 to 50 dollars ____ in her shop.A．so
• She devoted herself ________to her research and it earned her a good reputation in her field.A．stro
• 下列植物中，常用扦插繁殖的是[]A．甘薯和银杉B．葡萄和月季C．梨和苹果D．菊花和金鱼藻-八年级生物
• It was ________ that the tourists wanted to spend more time taking pictures outdoors.A．so fine weath
• —Are you feeling ________？—Yes.I'm fine now.A．any wellB．any betterC．quite goodD．quite better-高
• After two years' research，we now have a ________ better understanding of the disease.(2013·全国Ⅱ)
• (2013·浙江，18) If what your friend comes up with surprises you，don't reject it immediately.______
• —Is Mr. Wang in?—Sorry，he ________ lives here. He has moved.A．no moreB．not moreC．no longerD．not long
• The science lab being built in our school is ____________ the former one.A．twice as big asB．twice mo
• 在一棵苹果树上可以结出红富士、金帅、小国光三个品种的苹果，采用的繁殖方式是[]A．种子繁殖B．扦插C．压条D．嫁接-八年级生物
• It sounded like something was wrong with the car’s engine then, ______ they would have carried on t
• I cannot thank you ________ much. I might never have been admitted to such a famous university but
• ．Broadly speaking, I would agree with Shirly, though not________.A．widelyB．thoroughlyC．entirely D．ex
• 园艺师将一株野生的菊花，培育成具有多种颜色多个花朵的“塔菊”，采用的技术是[]A．种子繁殖B．扦插C．嫁接D．压条-八年级生物
• (2013·江西，24)What a terrible experience！________，you're safe now—that's the main thing.A．An
• (2013·湖北，29)Don't defend him any more.It's obvious that he________destroyed the fence of t
• ________ we looked at it, the better we liked the oil painting.A．AsB．WhileC．The momentD．The more-英语