我国家庭电路的供电电压是V;在教室里我们能听到老师上课的声音是通过 传播到自己耳 发布时间:2017-05-08 23:59 │ 来源:www.tikuol.com 题型:填空题 问题: 我国家庭电路的供电电压是 V;在教室里我们能听到老师上课的声音是通过 传播到自己耳朵里的。
题型:填空题 下面是历史谜语四则,请你猜一猜:(1)流言谤周公(打一成语)______________________________________(2)山之南,水之北(猜一古代地名)______________________________________(3)言必魏蜀吴(打七字俗语)______________________________________(4)鸟笼(打一三国人物)______________________________________ 查看答案
题型:填空题 某研究小组为测定药物对体外培养细胞的毒性,准备对某种动物的肝肿瘤细胞(甲)和正常肝细胞(乙)进行动物细胞培养。下列有关说法不正确的是 [ ]A.在利用两种肝组织块制备肝细胞悬液时,可用胃蛋白酶处理B.正常肝细胞在培养过程中具有细胞贴壁生长和接触抑制C.取单个肝肿瘤细胞进行培养,获得细胞群的方法属于克隆培养法D.乙细胞在原代培养过程中,最终会出现停止增殖的现象 查看答案
题型:填空题 情景交际,从方框中选择适当的句子填空,补全对话。A:Is that your new pen pal,Sophie?B:Yes,it is. A:Oh. 1 B:Her name is Maria. A:And where is she from?B:Um, 2__A:Where does she live?B: 3 A:Does she have any brothers and sisters?B: 4 She has two brothers and a sister. A: 5__B:Yes,she speaks English and Spanish. A. Does she speak English?B. What's her name?C. Yes,she does. D. She is from Mexico. E. She lives in Mexico City. F. No,she doesn't. 查看答案