在下列作物的生长中，应该注意多施加钾盐的一组植物是[]A．甘薯、马铃薯B．番茄、花生C．白菜、油菜D．菠菜、芹菜-七年级生物

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• 下列农谚中，没有科学道理的是[]A．有收无收在于水，多收少收在于肥B．粪大水勤，不用问人C．粪是农家宝，庄稼离它长不好D．春雨贵如油-七年级生物
• Not until all the fish died in the lake __________ how serious the pollution was.A．did the villagers
• 在下列哪种溶液中培养，绿色植物会生长不良[]A．土壤浸出液B．蒸馏水C．无土栽培营养液D．自来水-七年级生物
• If carefully, the experiment will be successful.A．doB．doesC．doneD．doing-高三英语
• While ______ in Scotland, he made friends with the natives there.A．workingB．workedC．he worksD．he is
• 无机盐被植物体吸收的原因是[]A．根有吸收无机盐的结构B．无机盐能溶解在水中C．根毛细胞专门能吸收无机盐D．根毛细胞有选择地吸收无机盐-七年级生物
• _____ fired, your health care and other benefits will not be immediately cut off. A．Would you beB．Sh
• Only when I read this story for a second time _________to appreciate its beauty.A．did I beginB．that
• 按照下图的方法，取2个大小相同的萝卜，各从顶端向下挖一个大小相同的洞，在A萝卜洞内装上浓盐水，在B萝卜洞内装上清水，过一段时间后，观察萝卜洞内水位的变化并注意用手摸-七年级生物
• Only after Ann read her essay the second time the spelling mistake.A．did she noticeB．she noticeC．doe
• Sitting under the willow trees ____ an old man.A．isB．areC．is thereD．are there-高三英语
• ________ these experiments were successfully completed would we think of going into humans.A．If onl
• The salmon we ate at the restaurant yesterday is terrific. I’d like to have it again even if it cost
• Only when they came ___________. A．I left the officeB．did I leave the officeC．left I the officeD．I d
• . Little ______ about her own safety, though she was in great danger herself.A．did Rose care B．Rose
• Never ______ such a good boss before I came to this company.A．do I meetB．I metC．had I metD．I had me
• So absorbedin the experiment that he didn’t even notice it was already over 12 o’clock.A．did heB．he
• If my brother doesn’t go to the evening party, .A．neither do IB．I will eitherC．either will ID．nor wi
• Not until he retired from teaching three years ago _______having a holiday abroad .A．he had conside
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• Only when the countries in the Middle East are no longer at war _____able to live a peaceful life.A．
• 有人将90千克土壤盛在木桶里，将重23千克的柳树苗种在桶中，只浇灌纯净的水5年后再次称量，发现土壤重量减少0.057千克，柳树重量增加74.5千克。柳树增加的重量主要来自[]A-七年级生物
• 17世纪上半叶，比利时科学家海尔蒙特设计的实验得出了植物体内的全部营养物质[]A．都是从土壤中获得的B．不是从土壤中获得的C．都是从水中获得的D．不是从水中获得的-七年级生物
• ______________, where we can stay for a week.A Next is another hotel to it B Next to it another hote
• 菜农在种植马铃薯时施农家肥料的主要目的是为它的生长提供[]A．水B．无机盐C．有机物D．以上各项-八年级生物
• ______ it rain tomorrow, we would have to put off the visit to the Water Cube.A．ShouldB．CouldC．HadD．
• Only in Paris ______ a pair of shoes like that.A．you will buy B．can you buyC．you can buyD．have you b
• ----- Did you tell the policeman that accident?----- Hardly ________ him the detail of it when he h
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• 小明将一根新鲜的黄瓜切成若干薄片后，分别泡在清水和浓盐水中(如下图所示)，则哪种液体中的黄瓜薄片会失水变软[]A．只有清水B．只有浓盐水C．两者都会D．两者都不会-七年级生物
• Only when I left my parents for Italyhow much I loved them.A．I realizedB．I had realizedC．had I reali
• 农业生产中施肥时，应该[]A．以施用化肥为主，配合施用农家肥B．以施用农家肥料为主，配合施用见效快的化肥C．完全施用化肥D．完全施用农家肥，不施用化肥-七年级生物
• 现代农业基地可种植出结满了黄色番茄的巨大“番茄树”，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罩。农艺师采用的这项生物技术是[]A．组织培养B．基因工程C．嫁-八年级生物
• The professor said he wouldn’t attend the opening ceremony ____.A．unless was invitedB．until inviting
• Doctor Lily has made her projects successful, so we suggest not only _______ to her old school but a
• _____, everyone present was amused by his adventure story in Africa.A．Absurd as might it soundB．As i
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• 将两株同样大小的玉米幼苗，分别放在盛有等量蒸馏水和土壤浸出液的试管中培养。两周后现象如下图，说明植物生活需要[]A．水B．无机盐C．阳光D．温度-七年级生物
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• 肥沃的土壤颗粒间的水中含有________，从这种土壤中滤出的液体叫________。-七年级生物
• 无土栽培是指[]A．把植物直接栽培在人、畜的粪尿中B．直接将植物栽培在水中的栽培方式C．不需要给植物施无机盐的栽培方式D．把植物栽培在按植物需要的无机盐比例配制的营养液中-八年级生物
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