A:用纯化的核衣壳蛋白反复注射到小鼠体内,产生的血清抗体为单克隆抗体
B:体外培养单个效应B细胞可以获得大量针对SARS病毒的单克隆抗体
C:将等量效应B细胞和骨髓瘤细胞混合,经PEG诱导融合后的细胞均为杂交瘤细胞
D:利用该单克隆抗体与SARS病毒核衣壳蛋白特异性结合的方法可诊断出病毒感染者
小明把以下物品分成两类:①铅笔芯、铜线、盐水 ②塑料尺、橡皮擦.他分成两类后的物品分别属于( )
在下列各句的空格内填上一个适当的完整的单词,该词的首字母已给出。1. Tony is really p____. He keeps waiting outside the house for almost three hours.2. The f____ stood on the board, laughing happily, because they caught lots of fish this time.3. When I heard of my grandma's d____, I couldn't help crying.4.Parents hope their children can do best in the class, so they usually e____ too much of their children.5. There is nothing in the box. It's e____
例句:秦皇汉武,略输文采;唐宗宋祖,稍逊风骚。