题型:名词解释 选词填空。England, teacher, twelve, strict, young Hello! My name is John. I am a boy. I'm 1___________. I'm from 2___________. I have a new math 3___________. He's a university student. He's 4___________ and nice. He likes sports.He's so 5___________. But we all like him very much. 查看答案
题型:名词解释 下图所示淋巴细胞的分化:图中①是指__________;②是指__________;①细胞在③___________处经抗原刺激后,①细胞分化成⑤___________;②细胞在④___________处经抗原刺激后分化成⑥___________。 查看答案
题型:名词解释 以下对于混凝土冬期施工的工艺要求说法正确的是()。A.混凝土的搅拌时间应比常温下搅拌时间延长50%B.冬期施工混凝土浇灌时间应控制在100MIN内完成C.混凝土入模温度不得低于5℃D.投料顺序应先投入骨料和以加热的水,然后再投入泥和外加剂溶液 查看答案