共查询到20条相似文献,搜索用时 0 毫秒
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Klein AW 《Science (New York, N.Y.)》2002,296(5567):468-469
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寒冷的季节早已过去,旅游旺季即将到来。还没为今年的行程制定计划吗?不妨来看看Pure Entertainment Group(简称PEG)精选出的几套最佳旅游方案,相信它们一定能给你带来难忘的奢华体验。 相似文献
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McCormack M 《Science (New York, N.Y.)》1983,222(4626):874
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将现代景观设计的评价标准"实用、经济、美观、生态"与真善美对应起来,并阐述真善美在现代景观设计中的体现. 相似文献
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Lewis J 《Science (New York, N.Y.)》2008,322(5900):399-403
We now have a wealth of information about the molecular signals that act on cells in embryos, but how do the control systems based on these signals generate pattern and govern the timing of developmental events? Here, I discuss four examples to show how mathematical modeling and quantitative experimentation can give some useful answers. The examples concern the Bicoid gradient in the early Drosophila embryo, the dorsoventral patterning of a frog embryo by bone morphogenetic protein signals, the auxin-mediated patterning of plant meristems, and the Notch-dependent somite segmentation clock. 相似文献
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