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名词解释题
阶段营养期 different nutritional stage
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What stage can the following grammar activity be used at?
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在植物生长发育中,有一个转折时期,此阶段对外界环境条件敏感和营养元素的缺乏影响明显,即使补施亦难弥补,这个阶段称为()。A、植物营养的阶段性B、植物营养最大效率期C、植物的营养临界期D、植物营养的选择性
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单选题What stage can the following grammar activity be used at? The teacher askes students to arrange the words of sentences into different columns marked subject, predicate, object, object complement, adverbial and so on. _____A
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