题目

酵母菌细胞质内的遗传物质的载体是(     ) A．染色体 B．线粒体 C．细胞质基质 D．线粒体和叶绿体 答案：B— What does your English teacher look like? — She’s tall and thin ________ long hair. A．have B．has C．there is D．with