He’s only too ready to help others, seldom, _____ refusing them when they turn to him.A．if everB．if

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• that they may eventually reduce the amount of labor needed on construction sites by 90 per-cent.A．Su
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• 下列农业措施不是利用植物顶端优势原理的是[]A．把棉花下部老叶去掉B．在一定时期去掉番茄顶芽C．不损伤杉树主干上的顶芽D．在一定时期去掉果实上部主干-八年级生物
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• Not until he arrived home _____ he find that this wallet had been stolen.A．didB．wouldC．whenD．that-英语
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• The teacher always tells her students that only if __________ hard _________ achieve success.A．do th
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• . Not only ___ given to people to find jobs, but also medical treatment will be provided for people
• _______ about wild plants that they decided to make a trip to Madagascar for further research.A．So c
• 植株的生长需要多种无机盐，其中需要量最多的是含____________的无机盐。植株的根生长时，生长最快的部位是__________；根吸水的主要部位是__________。根吸收的水分和无机盐-七年
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• ______ that many south-east Asian countries suffered a lot.A．So strong the Super Typhoon Haiyan bec
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