Acoording the ploidy analysis of chromosome, sequences and the survey of cultivation in field, Opisthopappus is primarily divided into two species.
结合这两个种的染色体倍性鉴定、序列分析和栽培观察实验，初步确定划分为两个种。
Based on the dangers of opium to the Northwest China, Zuo Zongtang made thorough analysis, he took severe ban action, and it contained the trend of opium cultivation spread at that time.
为此，左宗棠基于鸦片对西北社会危害的深入分析，采取了严厉禁烟的举措，遏制了当时鸦片种植泛滥的趋势。
This paper talks about the cultivation of students ability in discourse analysis in advanced English teaching.
本文对高级英语教学中学生语篇分析能力培养的相关问题加以论述。
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