The rules of the pupils' composition writing process indicates that the content and the expression training are two important parts in designing and carrying out the teaching strategies.
小学生写作过程规律决定了作文教学策略的设计与实施应该在丰富写作内容与训练语言表达两方面着眼；
Experimental results showed that gene expression control at the transcriptional level was a key regulation for determining composition and content of carotenoids in ripe fruit.
研究表明，番茄发育过程中对基因转录水平进行的调控是决定类胡萝卜素构成和含量的主要手段，但转录后调控和产物反馈抑制也不容忽视。
This paper discusses the differences between black-white sketches and design ones in the following aspects as observation and composition, methods and steps, form of expression, and means and space.
本文通过素描的观察方法与构图安排、方法步骤、表现形式、手段和空间观念等五个方面阐述了明暗素描与设计素描的差异性。
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