糖拌番茄会出现许多水，这是因为[]A．番茄细胞液的浓度大于周围溶液的浓度，细胞吸水B．番茄细胞液的浓度小于周围溶液的浓度，细胞吸水C．番茄细胞液的浓度大于周围溶液的浓度，-七年级生物

更多内容推荐

• ---What do you think of the film? ---Cool! Never before _____ a better one.A．had I seenB．I have seen
• (2013·高考新课标全国卷Ⅰ)The driver wanted to park his car near the roadside but was asked by the police_____
• 植物体正常生活需要量最大的无机盐是[]A．氮、磷、钾B．镁、钙、铁C．氮、磷、铁D．硼、磷、锌-七年级生物
• 肥料的作用主要是给植物的生长提供无机盐。[]-七年级生物
• 有位菜农收获了一个重5公斤的大萝卜，促进这个萝卜生长迅速的物质主要来自土壤中的[]A．氮肥B．磷肥C．钾肥D．硼肥-八年级生物
• These problems, ________, will seriously affect the growth of teenagers and even the nation’s future
• _____ , his idea was accepted by all the people at the meeting.A．Strange as might if soundB．As it mi
• ________ when your ticket has been checked will you be allowed to take the plane.A．JustB．OnlyC．Still
• 植物可以进行无土栽培的原因是[]A．植物的根吸收的只是水和无机盐B．土壤对植物生长没有作用C．植物的根吸收的不是土壤中的无机盐D．根只吸收水-七年级生物
• Little ________ that we were watching his every move，so he seemed to be going his own way in this bu
• No sooner______ themselves in their seats in the hall than the speaker began his speech.A．they settl
• (2013·高考新课标全国卷Ⅱ)It was only after he had read the papers ________Mr.Gross realized the task before h
• 农谚说：“有收无收在于水，收多收少在于肥”。这说明植物生长需要[]A．水和无机盐B．有机物C．维生素D．适宜的温度-七年级生物
• 根吸收的无机盐主要来自于[]A．雨水中B．灌溉的水中C．土壤溶液中D．土壤颗粒中-七年级生物
• 植物生长过程中，需要量最大的无机盐是含[]A．硼、铜、氮B．钾、硼、铁C．铁、磷、锌D．氮、磷、钾-七年级生物
• Generally speaking, if ______ strictly following the instructions, the electric bike is not as dange
• 参观沈阳世博园的同学对几株上面结满了巨大番茄的“番茄树”啧啧称奇，这些“番茄树”不是种植在土壤里，而是种植在富含营养液的水箱里。采用的这项生物技术是[]A．组织培养B．无土-七年级生物
• 无土栽培就是用人工配制的营养液培育植物的方法。配制植物营养液是根据[]A．光合作用需要水的道理B．植物生长发育过程需要无机盐的道理C．植物根系呼吸需要水中溶解氧的道理D．植-八年级生物
• I've tried very hard to improve my English.But by no means ________ with my progress.A．the teac
• He jumped at the opportunity when he saw the advertisement in a newspaper，because barely ________ ma
• Every evening after dinner，if not ________ from work，I will spend some time walking my dog.A．being t
• 给庄稼施肥主要是给植物的生长提供无机盐。[]-七年级生物
• (2013·高考江西卷)Only when he apologizes for his rudeness________to him again.A．I will speakB．will I spea
• 农田一次施肥过多，会引起“烧苗”的原因是[]A．化肥过多，土壤温度升高B．土壤溶液浓度大于植物细胞液浓度C．土壤溶液浓度小于植物细胞液浓度D．土壤溶液浓度等于植物细胞液浓度-八年级生物
• Next door to ours ______, who has achieved much in physics.A．where lives an old scientistB．where do
• On the National Day, up _____ into the air. Then the crowed cheered.A．the balloons wentB．went the ba
• 用以下三种水（①蒸馏水②河水③稻田中的浑水）分别培养同样大小的番茄苗，一个月之后，幼苗的高度可能是[]A．①②③同样高B．①最高，②次之，③最矮C．①②一样，③最矮D．③最高，②次之，①最-七年级生物
• 某同学在三个地点考察同一种植物的根系分布情况，绘制根系分布图如下。(1)该植物的根系属于那种类型？(2)这三种分布情况可能受哪种因素的影响？(3)试推测三个地方该植物根系不-七年级生物
• —Did Linda see the traffic accident?—No，no sooner ________ than it happened.A．had she goneB．she had
• 植物生长需要无机盐，因此植物生长离不开土壤。[]-七年级生物
• 一次施肥过多，会导致植物出现“烧苗”现象，原因是[]A．根细胞吸水过多B．根细胞失水过多C．根细胞吸收无机盐过多D．根细胞吸收无机盐过少-七年级生物
• 将2株大小一样、发育相同的健壮大豆苗A、B，分别在加土的雨水和雨水中培养，经过一段时间，A、B两株植物在长势和重量上的差别很大，结果如下表：(1)植株重量增加的重要原因，-七年级生物
• (2013·高考湖南卷)Not once________to Michael that he could one day become a top student in his class.A．occ
• 将有些萎蔫的青菜用清水浸泡一段时间后，会发现它硬挺了些，这是因为[]A．细胞吸水胀大B．细胞失水，细胞之间变紧密C．细胞壁加厚D．细胞活动旺盛-八年级生物
• Not until the woman was out of work again two months ago _______ going to attend a training class. A
• –- Helen, are you going to the airport to see Jack off the day after tomorrow? -- _____________, I w
• (2013·浙江，16)The only way to succeed at the highest level is to have total belief ________ you are be
• Nobody would stand out admitting the fact，for some reason，________ they lost the game.A．thatB．whichC
• 下图是某同学设计的一组实验：在两个大小相似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，记下玻璃-七年级生物
• 将四株大小差不多的同一种植物的幼苗，分别培养在下列液体中，能正常生长的是[]A．糖水B．盐水C．土壤浸出液D．自来水-七年级生物
• 植物生活需要最多的无机盐是含有哪些成分的无机盐？[]A．氮、磷、钾B．氮、磷、铁C．磷、钾、硼D．氮、硼、锌-七年级生物
• (2013·高考江苏卷)“Never for a second，”the boy says，“________ that my father would come to my rescue.”A．I
• 植物生活需要多种无机盐，其中需要量最多的是含[]A．碳、氢、氧的无机盐B．氮、磷、钾的无机盐C．钙、铁、锌的无机盐D．磷、硫、镁的无机盐-七年级生物
• Unsatisfied _____ with the payment, he took the job just to get some work experience.A．as was heB．as
• Only in this way get rid of this bad habit and I believe onlypersuade him .A．you can; you canB．can y
• “ On no account” , the teacher said, “________ open in day and night. ”A．the door to the basement i
• A plan has been put forward ________ more graduates should go to work in the country.A．when BB．thatC
• 17世纪以前人们认为植物生长需要的各种物质是来自[]A．土壤B．空气C．土壤中的水分D．雨水-七年级生物
• 一位同学猜想：绿色植物需要沙子才能更健康的生长。为了证明她的猜想，她准备了两盆植物，其中一盆所处的环境和条件如下图所示，则另一盆所处的环境和条件应该是[]A．B．C．D．-七年级生物
• 植物生活中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-七年级生物