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举一反三
【单选题】胚胎工程技术在生产中的应用不包括[ ]
A.
移植胚胎干细胞使退化的组织修复并恢复正常功能
B.
进行胚胎移植充分发挥雌性优良个体的繁殖潜能
C.
采用机械方法将早期胚胎分割产生同卵双胎
D.
在小鼠腹腔中培育杂交瘤细胞生产单克隆抗体
【单选题】Naturally the young are more inclined to novelty than their elders and it is in their speech, as it always was, that most of the vocabulary changes originate. But listening critically to their talk I ...
A.
lack linguistic originality
B.
have always been interested in magic
C.
are becoming more superstitious
D.
are interested in magic when young