Each lesson has eight parts, like rhesis, scene, text, new words, emphases, exercises, grammar and words.
每讲内容有国名句、商务场景、课文习、生词习、要点分析、点练习、语法习、词习等八个习环节。
Each lesson has eight parts, like rhesis, scene, text, new words, emphases, exercises, grammar and words.
每讲内容有国名句、商务场景、课文习、生词习、要点分析、点练习、语法习、词习等八个习环节。
Study of the reaction order of p-dichlorobenzene sonolysis was carried out The emphases of the study were the impact of the original concentration, the solution volume and the sound frequency.
着研究了溶液初始浓度、积和超声波频率对超声波处理对二氯苯的影响,得到不同条件下的最佳条件;
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