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1.不能用被动式的动词Some verbs cannot be used in the passive form. They include bloom,cease,come,compete,connote, die,differ,resign.Such verbs can only be used in the active form. [Don’t say:He has deeided to be resigned at the end of this year.] Exercise 1 Correct the expressions in brackets. 相似文献
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本文给出了素数和素数对计数问题的几个公式，在此基础上，证明了Goldbach问题和孪生素数问题。 相似文献
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研究采用问题解决作业单和认知作业分析法考察了71名高中生解决学科问题时的图式归纳和迁移情况。结果表明：（1）在问题结构相同的情况下，增加问题表面相似性能促进问题解决迁移；（2）近类比条件有助于同一学科领域问题的迁移，而远类比条件可能更有助于跨学科领域问题的迁移；（3）近类比条件下，图式归纳水平对学科问题迁移的影响不大，远类比条件下，较高的图式归纳水平有助于学科问题解决的迁移。 相似文献
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1.Research and study {as nouns}"Research" is an uncountable noun. You cannot use it in the plural. (Never say "researches." ) You refer generally to research done on a subject, or to the research that you have carried out.When you refer to a particular project,or the papers produced by other researchers,you are referring to a particular instance of research.You call this a study. "Study" is a countable noun.You can speak about the studies done in the past on a subject. 相似文献
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Dorien J. de Tombe 《High Ability Studies》1991,2(1):18-27
Some complex societal problems such as sudden changes in Eastern Europe or the problem of AIDS are very hard to handle. Even defining the problem is difficult. Managers and experts often lack the knowledge and training to handle these kinds of problem, although the problems require intensive effort. Education typically offers few opportunities for learning how to handle them. Research on Artificial Intelligence mostly focuses on problems in stable situations which have already been solved, and ignores as yet unsolved problems in rapidly changing situations. Before a problem can be solved, it has to be defined: System dynamic modelling can be a powerful tool for doing this. Defining the kind of problem discussed here also requires teamwork: Managers and experts can learn to define a complex problem in a special learning environment involving cases embedded in free form games. 相似文献
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讨论了一类二阶函数组Riemann边值逆问题，给出了该问题的一种提法，并在该提法下给出了该问题的封闭解． 相似文献
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行列式中的一个概率问题 总被引：1，自引：0，他引：1
邹植民 《湘潭师范学院学报(社会科学版)》1989,(3)
设一个n阶行列式的每个元素以1/2的概率取偶数,1/2的概率取奇数,则该行列式的值只能是整数。 当n≥2时不难猜测行列式的值取奇数的概率较小,本文的目的在于精确地计算出这一概率。 相似文献
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库连喜 《黄冈师范学院学报》1994,(1)
对于Robin问题在主要假设f，fx，fx'．连续，fx≥-β（t），－α（t）≤fx'≤α（1＋｜X’｜）之下，给出一个存在唯一解的充分条件． 相似文献
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George A. Coe ∗∗ 《Religious education (Chicago, Ill.)》2013,108(3):152-157
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杨红旗 《四川师范学院学报》2007,(1):47-51
意境论现代转化的历史是消解中国化的历史，它开启了以西方思想质料与话语规则创建诗学的现代之路。但是这条中国现代诗学之路未能完成，甚至迷失了方向。创建中国现代诗学需要重新回到现代问题，需要重启汉语诗学。 相似文献
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