Large-scale evaluation of pea(Pisum sativum L.)germplasm for cold tolerance in the field during wint

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As a cool-season crop, pea(Pisum sativum L.) can tolerate frost at the vegetative stage but experiences yield loss when freezing stress occurs at the reproductive stage. Cold-tolerance improvement of pea varieties is important for stable yield and expansi
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【正】 中国工人运动的先驱者张浩同志,原名林育英,湖北黄冈人,1922年加入中国共产党后,曾先后担任中华全国总工会驻赤色职工国际代表、中共驻共产国际代表团成员、中央白区
“师者,所以传道授业解惑也”,这是我国古代对教师角色、行为、义务的精确概括。随着人类文明的发展以及社会的进步,现实要求教师由讲师向培训师、园艺师、魔术师甚至疗伤师进行转变,他不仅是知识的传授者,也是灵魂的塑造者。  教师是学生心中神圣的载体,眼中灵魂的象征,学生则是教师心目中的艺术品。两者通过学校、教学、课堂和讲台为纽带有机地结合在一起,同命运共发展。知识的多元化以及交叉化使得教师除深入洞悉本专业