【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
【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