植物生活过程中需要量最大的无机盐是（）A．氮、磷、硼B．氮、磷、钾C．氮、磷、铁D．钾、铁、硼-生物

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• 为验证植物的生长需要无机盐，某同学做了如下实验：将两株生长状况完全相同的健壮幼苗分别培养在蒸馏水和土壤浸出液中，一段时间后，两株幼苗的生长状况是（）A．均生长良好B．均-生物
• —Nothing wrong with it，________？—No.Yours is a specially built model.Drive carefully，though.A．is the
• ．No sooner ________ down on bed ________ the telephone rang.A．had he lain; thanB．had he lied; whenC．
• So quickly ________ is a possibility today may be a reality tomorrow.A．are science and technology ad
• 在甘蔗地里间种花生、大豆等豆科植物，可少施氮肥的原因是（）A．甘蔗生长不需要氮肥B．空气中有氮肥C．土壤本身含有大量的氮肥D．豆科植物中根瘤菌可增加土壤的含氮量-生物
• Little ________ about her own safety，though she was in great danger herself.A．did Rose careB．Rose di
• He was unable to make such progress, __________________.A．as he tried hardB．as hard he triedC．so har
• (2013·福建，34)Not until he went through real hardship ________ the love we have for our families is im
• 植物特别矮小，叶片呈暗绿色，并出现紫色，这种症状可能是缺乏含什么的无机盐？（）A．铁B．磷C．钾D．氮-生物
• 给庄稼施肥时，用量越多越好．______．-生物
• 大白菜生长过程中，需要量最多的无机盐是（）A．含铁、锌、钙的无机盐B．含锰、铝、铜的无机盐C．含氮、磷、钙的无机盐D．含氮、磷、钾的无机盐-生物
• ________ about wild plants that they decided to make a trip to Madagascar for further research.A．So
• ________ she is not so cheerful ________ she used to be?A．How it is that；asB．How is it that；asC．Is i
• (2013·甘肃兰州名校高三检测)I have been living in the United States for 20 years, but seldom ________ so lonely
• The Chinese government promised that under no circumstances ________ the efforts to provide universa
• Kate had a terrible time this summer. Not a day ________ without having some unpleasantness with her
• 植物生活需要量最大的三种无机盐是（）A．含氮、磷、钾的无机盐B．含钙、铁、钾的无机盐C．含氮、镁、锌的无机盐D．含钙、磷、硼的无机盐-生物
• (2010·江西)Not until he left his home ________ to know how important the family was for him.A．did he b
• Deep in the forest _____, who made no contact with the outside world.A．living a coupleB．were a coup
• 水稻生长的后期，为防止灌溉后倒伏，应多施（）A．含钾的无机盐B．含磷的无机盐C．含氮的无机盐D．含锌的无机盐-生物
• You shouldn’t talk until ________ to.A．askingB．having askedC．to askD．asked-高二英语
• 如图是植物根尖结构图，据图回答：（1）图中各部分依次是一二三四。（2）吸收水分和无机盐的主要部位是。（3）根吸收来的水分和无机盐，通过茎中运输到叶。（4）当周围水溶液的浓度小-七年级生物
• 西瓜种植过程中，既经济又科学的施肥方法是（）A．只施化肥出B．只施农家肥C．施大量化肥配合少量农家肥D．以施农家肥为主配合少量化肥-生物
• The research is so designed that once _____ nothing can be done to change it.A．beginsB．having begunC
• —Would you like to join me for a quick lunch before class?—________，but I promised Nancy to go out
• 下列植物中，需要含氮的无机盐较多的是（）A．菠菜B．大豆C．花生D．马铃薯-生物
• 为了防止水稻倒状（成熟期植株自然倒下），在水稻生长早期应追加什么肥最有效[]A．含氮的肥料B．含磷的肥料C．含钾的肥料D．混合肥料-七年级生物
• “In no conditionyou are a Chinese.” Dad told me before I went abroad.A．you should forgetB．forget you
• (2013·陕西重点中学高三二模)We pursue happiness, thinking one day we will find it. But ________ it by seeking i
• 含钾的无机盐能促使茎干健壮，淀粉等的形成．在一些山区的土壤溶液中含钾较多，这种土壤最适合栽种的植物是花生和大豆．______．-生物
• －Why didn’t Tom give you one of his paintings?－I didn’t want one，but he would have given me one if I
• ．Not until I came home last night ______ to bed .A．Mum did goB．did Mum goC．went MumD．Mum went-高三英语
• 甲试管盛有肥沃土壤的浸出液，乙试管盛有蒸馏水，各培养一棵大小相同的健壮幼苗，过些日子后观察这两棵幼苗的长势，请回答：（1）甲苗生长______，颜色______．乙苗生长______，-生物
• Only when we have strong confidence, courage and strength, ________ overcome all the difficulties.A．
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• ______ a little earlier, you could have caught the last bus.A．If you would arriveB．If you arrivedC．S
• (2013·开封高三第一次模考)Not until ________ the Internet ________ that the Chinese sailors were rescued by th
• 海尔蒙特从柳树栽培实验中得到启发，绿色植物生长所需要的物质是[]A．二氧化碳B．水C．氧气D．无机盐-七年级生物
• 植物可以进行无土栽培的原因是[]A．植物吸收的并不是土壤中的无机盐B．植物的根从土壤中吸收的仅是水分和无机盐C．土壤与植物的生长无关D．土壤对植物仅起固定作用-八年级生物
• 小明栽了一盆花卉，他非常用心地护理它。为了使它生长得更好，在花盆中施用了一些化肥，施肥后，花卉不但没有长好，反而出现萎蔫现象。请你帮他分析一下，这可能是什么原因？-七年级生物
• 在种植大白菜、菠菜、芹菜等以收获叶为目的植物时，应多施用（）A．含锌的无机盐B．含磷的无机盐C．舍钾的无机盐D．含氮的无机盐-生物
• 植物的生长需要量最多的无机盐是（）A．含铜、锌的B．含碘、氯的C．含汞、镉的D．含氮、磷、钾的-生物
• —Why wasn't John hired for the job?—I don't know, but he ________.A．wasB．had beenC．should
• 植物能进行无土栽培依据的原理是（）A．植物吸收的并不是土壤中的无机盐B．植物的根吸收的只是水和无机盐C．土壤对植物的生长并没有作用D．植物的根只吸收水和氮、磷、钾三种无机盐-生物
• Not until he took off his dark glasses ___________ he was a famous film star. A．had I foundB．did I f
• 如果植株生长得特别矮小，而且叶片呈暗绿色甚至紫色，是由于缺少哪种无机盐[]A．氮B．磷C．钾D．铁-七年级生物
• (2013·河南豫西五校高三质检)Helen has just heard the news from her father ________ her boyfriend David will com
• ________ me what you wanted to know, I should not have wasted my time talking so much with you.A．Ha
• _____ is necessary for us to tell him about the result.A．ThatB．ThisC．ItD．What-高一英语
• 实验1在洁净的玻璃板的两侧，分别滴有少许土壤浸出液和等量的蒸馏水，将玻璃板放在火焰上加热，待土壤浸出液和蒸馏水完全蒸发后，观察发生了什么现象。实验2中用甲、乙两个试-七年级生物