单选题:果酒变酸、泡菜变酸、腐乳外部致密的一层“皮”,与其相关的微生物分别是( )。 题目分类:初中生物 题目类型:单选题 查看权限:VIP 题目内容: 果酒变酸、泡菜变酸、腐乳外部致密的一层“皮”,与其相关的微生物分别是( )。 A.醋酸菌、醋酸菌、毛霉 B.乳酸菌、乳酸菌、酵母菌 C.醋酸菌、乳酸菌、毛霉 D.乳酸菌、醋酸菌、酵母菌 参考答案: 答案解析:
基因B是控制矮牵牛蓝色花色素合成的基因,其碱基序列已知,利用基因工程技术培育蓝玫瑰.下列操作不正确的是( )。 基因B是控制矮牵牛蓝色花色素合成的基因,其碱基序列已知,利用基因工程技术培育蓝玫瑰.下列操作不正确的是( )。 A.从蓝色矮牵牛细胞获得基因 B.连接基因B 分类:初中生物 题型:单选题 查看答案
Teaching activities must be based on the students' cognitive Teaching activities must be based on the students' cognitive development level 分类:初中生物 题型:单选题 查看答案
Which of the following has not the proper word stress? Which of the following has not the proper word stress?A.de'fend B.a'bove C.'win 分类:初中生物 题型:单选题 查看答案
According to the passage, if a student's school record is no According to the passage, if a student's school record is not good, he__________ 分类:初中生物 题型:单选题 查看答案
What items are mainly assessed in the following questions?Ho What items are mainly assessed in the following questions?How well did you work 分类:初中生物 题型:单选题 查看答案