A:双缩脲试剂-蛋白质-紫色;健那绿染液-线粒体-蓝绿色
B:苏丹Ⅲ染液-脂肪-橘黄色;碘液-淀粉-蓝色;重铬酸钾溶液-酒精-灰绿色
C:甲基绿-DNA-绿色;苏丹Ⅳ染液-脂肪-红色;斐林试剂-麦芽糖-砖红色
D:龙胆紫染液-染色体-紫色;甲基绿-染色体-绿色
不能人工诱导原生质体融合的方法是( )
对 “船客”、“舵手与船工”理解有误的一项( )
我国年降水量分布的总趋势是( )
阅读下面的一段话,判断正误。
Hello! I'm Lily. I'm nine years old. I'm from the USA. Look! This is my family. My father is a teacher. My mother is a teacher, too. The girl is my sister, Lucy. She's seven years old. She and I are pupils. I like monkeys and she likes pandas.