细菌没有真正的细胞核．______．
细菌的结构有细胞壁、细胞膜、细胞质、遗传物质等结构，虽没有成形的细胞核，但是遗传物质同样能传递遗传信息．
故答案为：√
May I have you attention please? I have few things to tell you. When you have class here in the language lab, please be here a little early. Change your shoes before enter the lab. Don’t bring anything here except your text books. When you are into, please don’t touch these machine without permission. Always do as the teacher tell you to. In class you should only speak the English, not Chinese. Recorders can be used make a copy of the listening materials. When class over, turn off your machines and leave the lab one by one.
That’s all. Thank you.
处方药、非处方药的采购、调配等活动可参照零售药店进行管理的是( )
A．药品生产企业B．药品批发企业C．药品零售企业D．普通商业企业E．医疗机构药房
