西瓜种植过程中，既经济又科学的施肥方法是（）A．只施化肥出B．只施农家肥C．施大量化肥配合少量农家肥D．以施农家肥为主配合少量化肥-生物

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• (2013·陕西重点中学高三二模)We pursue happiness, thinking one day we will find it. But ________ it by seeking i
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• －Why didn’t Tom give you one of his paintings?－I didn’t want one，but he would have given me one if I
• ．Not until I came home last night ______ to bed .A．Mum did goB．did Mum goC．went MumD．Mum went-高三英语
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• Only when we have strong confidence, courage and strength, ________ overcome all the difficulties.A．
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• ______ a little earlier, you could have caught the last bus.A．If you would arriveB．If you arrivedC．S
• (2013·开封高三第一次模考)Not until ________ the Internet ________ that the Chinese sailors were rescued by th
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• —Why wasn't John hired for the job?—I don't know, but he ________.A．wasB．had beenC．should
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• Not until he took off his dark glasses ___________ he was a famous film star. A．had I foundB．did I f
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• 无土栽培各种植物能获得成功，其主要原因是植物能从培养液里获得足够的（）A．水分和氧气B．水分和有机物C．水分和无机盐D．无机盐和氧气-生物
• It’s beyond words. Nowhere else in the world _______ such a wonderful house!A．can find youB．you can
• —Susan has done well in the competition. —______. She always does well in such activities.A．So has s
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• You may take them all home_______. A．if possibleB．if canC．unless soD．even if you can-英语
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