植物体需要量最多的无机盐是[]A．含氮、含磷、含钾B．含氮、含磷、含碘C．含氮、含铁、含钾D．含钙、含磷、含钾-七年级生物

更多内容推荐

• --Are you a teacher? --No, but I ________.A．used toB．was used toC．used to beD．used to do-高三英语
• Only when the government increases affordable homes for low-income groups . A．the imbalance of deman
• 植物体需要量最多的无机盐是[]A．氮磷硫B．硫钾铁C．氮磷钾D．碳磷锌-七年级生物
• This is not my story, nor ______ the whole story. My story plays out differently.A．is thereB．there i
• ______ I already know what career I want to follow.A．Young as I amB．I am as youngC．As I am youngD．As
• 菜农给青菜施农家肥主要是给青菜的生长提供[]A．无机盐B．有机物C．水D．能量-七年级生物
• What we have to admit is that never in the past thirty years __________ so greatly as today.A．has Ch
• 植物细胞吸水取决于[]A．细胞液浓度B．细胞液浓度＞细胞周围水溶液浓度C．细胞周围水溶液浓度D．细胞周围水溶液浓度＞细胞液浓度-七年级生物
• 下图是某同学设计的一组实验：在两个大小几乎相同的萝卜中各挖一个大小相等的洞，向甲、乙萝卜的洞中分别注入等量的清水和浓盐水，各用一个装有玻璃管的橡皮塞塞住洞口，记下-八年级生物
• —I want to get a license. What do you think I should do? —Only with enough practice ______ the driv
• 如果一株番茄植物比其它的矮小瘦弱，而且叶片发黄，那么可判定该棵番茄缺少[]A．钾肥B．氮肥C．磷肥D．硼-七年级生物
• Not all the students follow the rules. Which of the following statement has the same meaning？A．None
• Out of the crowded bus ______, who was dressed in a black suit, waving to a woman.A．a tall man stepp
• --Did you visited the military museum?--Yes. Not until quite recently ________ any idea what a guide
• So suddenly _____ the disease that the whole family were at a great loss.A．did he catchB．he caughtC
• 农业生产上所说的肥料的三要素是指[]A．氮、磷、铁B．氮、磷、钾C．氮、磷、镁D．氮、磷、钠-七年级生物
• Not until____ did Humphrey begin working. A．did it stop rainingB．had it stopped rainingC．it stopped
• 缺钾时的表现植株矮小，新叶淡绿，老叶黄色枯焦缺氮时的表现茎叶细弱，易倒伏，叶色黄，老叶焦枯并蜷缩缺磷时的表现植株矮小，茎叶暗绿或呈紫红色氮肥充足的时候使植物茎秆健-八年级生物
• 下列哪种情况下，细胞是吸水的[]A．把青菜放在泡菜坛中用盐水浸泡B．把萎蔫的青菜放在清水中浸泡C．把萝卜条用食盐和辣椒腌制D．把蔬菜放在铁锅中炒-七年级生物
• Not only ______ strict with us, but also ______ for us .A．was the teacher ; did he care B．was the t
• 种子在适宜的条件下可萌发成幼苗，幼苗能长成植物体。从种子到植物体的变化过程中，下列图中能正确表示有机物质量变化的是[]A．B．C．D．-八年级生物
• He’s only too ready to help others, seldom, _____ refusing them when they turn to him.A．if everB．if
• So loudly _____ that ______ hear her clearly.A．did she speak; could everyoneB．did she speak; everyo
• _______, she is quite modest.A．As she is an experienced teacherB．An experienced teacher as she isC．
• ______ about “the God Particle” that Jude decided to search for as much information as possible abou
• ____, he doesn’t study well.A．As he is cleverB．He is as cleverC．Clever as he isD．As clever he is-高三
• 下列哪一项农业措施最能体现目前现代化的生产[]A．合理灌溉B．合理施肥C．根外施肥D．无土栽培-七年级生物
• Nowhere else in such a small town, I think, ___ a book as good as this one.A．can you getB．does you g
• 给庄稼施肥时，用量越多越好。[]-七年级生物
• 需要磷肥较多的植物是[]A．甘薯和甘蔗B．番茄和白菜C．豆角和黄瓜D．芹菜和萝卜-八年级生物
• that they may eventually reduce the amount of labor needed on construction sites by 90 per-cent.A．Su
• No sooner _______ the competition _______ _______ an unexpected accident happened.A．did … begin; tha
• 下列农业措施不是利用植物顶端优势原理的是[]A．把棉花下部老叶去掉B．在一定时期去掉番茄顶芽C．不损伤杉树主干上的顶芽D．在一定时期去掉果实上部主干-八年级生物
• Only when he returned ________ that the war had ended and the army had come back.A．we tellB．we toldC
• Not until he took off his sunglasses _______ him.A．I recognizedB．I did recognizeC．did I recognizeD．
• Zhang Hua is clever and works hard at his subjects.A．So is Li MingB．So does Li MingC．It was the same
• Some green beans, ______ long enough, can be poisonous (有毒的).A．if not be cookedB．if not cookedC．if n
• _______ are the days when girls were looked down upon.A．GoingB．GoneC．To goD．Go-高二英语
• 无土栽培指的是什么？-七年级生物
• 给农作物进行深层施肥，可以促使根系向土壤深处生长，这是依据根的什么特性[]A．向水生长B．向肥生长C．向地生长D．固定植物体-八年级生物
• Not until he arrived home _____ he find that this wallet had been stolen.A．didB．wouldC．whenD．that-英语
• Not until I was standing on the edge of death ____ how much I wanted to live.A．I realizedB．did I rea
• 冬天大雪后，为及时清除积雪，减少交通事故，有时会在雪路上撒些食盐。但不能把带盐的雪水堆积到路边树下，其原因是[]A．雪水温度低，树木因耐受不了低温而冻死B．雪水中带有大-八年级生物
• The teacher always tells her students that only if __________ hard _________ achieve success.A．do th
• prices , we have to take into consideration the quality of the goods . A．While comparedB．ComparedC．
• . Not only ___ given to people to find jobs, but also medical treatment will be provided for people
• _______ about wild plants that they decided to make a trip to Madagascar for further research.A．So c
• 植株的生长需要多种无机盐，其中需要量最多的是含____________的无机盐。植株的根生长时，生长最快的部位是__________；根吸水的主要部位是__________。根吸收的水分和无机盐-七年
• 某同学想要验证“植物的生活是否需要无机盐”，于是将两株同样大小的玉米苗分别放在盛有等量蒸馏水和土壤浸出液的试管中培养。实验结果如下图，请根据图回答问题：AB（1）设计本实-七年级生物
• ______ that many south-east Asian countries suffered a lot.A．So strong the Super Typhoon Haiyan bec