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

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• 如图所示为细胞吸水、失水示意图。据图回答问题。(1)久旱逢雨的大树，枝叶会逐渐舒展硬挺，青翠欲滴。此时的植物细胞所处状态，符合图____（填字母）。(2)用糖拌西红柿时，会逐-七年级生物
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• _________ I will visit Brazil during the 2016 Olympic Games. A．If I am possibleB．If it possibleC．If
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• you eat the correct food be able to keep fit and stay healthy.A．Unless; will youB．Only if; you will
• 植物种植在土壤中，土壤能给植物提供，还对植物起到___。在现代化的农场，人们可以不用，根据植物生活所需要，按照一定的来栽培植物，这种方法就是。这种种植方式的意义可以-七年级生物
• Her answer is not acceptable, and ______.A．neither am IB．either is mineC．neither is mineD．mine is ne
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• 农民给庄稼施肥、浇粪，主要是为植物提供[]A．氧气B．水C．无机盐D．有机物-七年级生物
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• 如图是某同学做的比较实验，用甲、乙两个试管（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，过一段时间后，生长情况如图所示，分析回答下列-七年级生物
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