下列表述正确的是  (   ) A.醛基的结构简式 —COH       B.聚丙

下列表述正确的是  (   )

A.醛基的结构简式 —COH       B.聚丙烯的结构简式

C.羟基的电子式           D.乙醇的结构简式C2H6O

答案

C

相关题目

Though ________ money, his parents managed to send him to university. A. lacked
Though ________ money, his parents managed to send him to university. A. lacked B. lacking of C. lacking       D. lacked in
为了切实减轻小型微型企业负担,促进小型微型企业健康发
为了切实减轻小型微型企业负担,促进小型微型企业健康发展,财政部会同国家发展改革委印发通知,决定从2012年1月1日至2014年12月31日,对小型微型企
 观察下列各式:请你找出其中规律,并将第n(n≥1)个等式写
 观察下列各式:请你找出其中规律,并将第n(n≥1)个等式写出来                    .
     ▲        ,欲语泪先流。(李清照《武陵春》)
     ▲        ,欲语泪先流。(李清照《武陵春》)
唐朝一位余杭(今杭州)商人,要到洛阳去经商,如果走运河水
唐朝一位余杭(今杭州)商人,要到洛阳去经商,如果走运河水路,他不必经过 A.江南河            B.邗沟           C.通济渠          D.永
My father will have a _______holiday next month. He’ll take me to Beijing.  
My father will have a _______holiday next month. He’ll take me to Beijing.    A. ten days        B. ten day’s         C. ten—day       D. ten day
(本小题满分14分)从3名男生和名女生中任选2人参加演讲比
(本小题满分14分)从3名男生和名女生中任选2人参加演讲比赛.   (I)写出所有的基本事件;      (Ⅱ)求所选2人恰有名女生的概率;   (Ⅲ)
  What he said at the meeting referred to _______ he was interested in the pro
  What he said at the meeting referred to _______ he was interested in the project. A. that    B. which C. what   D. the fact that

最新题目