【单选题】2008年诺贝尔生理或医学奖的获得者发现的人乳头状瘤病毒(HPV)和2009年首先爆发于墨西哥的甲型H1N1流感病毒的遗传物质分别是DNA和RNA。下列有关DNA和RNA的比较正确的是 [ ]
A.
分布上,真核细胞中的DNA全部存在于细胞核中,RNA全部存在于细胞质中
C.
结构上,DNA多为双螺旋结构,RNA通常为单链结构
D.
鉴定DNA用吡罗红染色剂,鉴定RNA用甲基绿染色
【多选题】业主大会会议分为定期会议和临时会议。定期会议按照业主大会议事规则的规定由业主委员会组织召开。( )出现时业主委员会应当及时召开业主大会临时会议。
【单选题】to literature when very young, he would not be a master of literature today. A. Were he not exposed B. Were he not to be exposed C. Had he not exposed D. Had he not exposed himself
【简答题】壳型(芯)法制型(芯)的方法有两种:翻斗法和吹砂法。翻斗法常用于 ,吹砂法用于 。
【单选题】to literature when very young, he would be a master of literature today. A. Were he not exposed B. Were he not to be exposed C. Had he not exposed D. Had he not exposed himself