The secondary mapping populations (SMPs), which were used to map quantitative trait loci (QTLs), include near-isogenic lines, introgression lines, chromosome segment substitution lines et al.
用于作物数量性状基因座（QTL）定位研究的次级作图群体有近等基因系、导入系、染色体片段代换系等。
Objective To discuss the relationship between trait coping style and mental health of secondary school students.
目的探讨中专生特质应对方式与心理健康的关系。
Objective To discuss the relationship between trait coping style and mental health of secondary school students.
目的探讨中专生特质应对方式与心理健康的关系。
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