Little ________ that we were watching his every move，so he seemed to be going his own way in this bu

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• 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
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• 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
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• 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
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• (2013·高考湖南卷)Not once________to Michael that he could one day become a top student in his class.A．occ
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• 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
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• (2013·高考辽宁卷)At no time ________the rules of the game.It was unfair to punish them.A．they actually br
• The giant panda is an animal unique to China, and Wolong in Sichuan Province is one of the few place
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• 种植业可以离开土壤。[]-七年级生物
• 在农业生产中，增加二氧化碳浓度，提高农作物的产量的常用方法是[]A．利用微生物分解有机物产生的二氧化碳B．给植物增施有机肥C．直接适量施放贮存在钢瓶中的二氧化碳D．以上都可-七年级生物
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