题目

Could you tell me      ? A．where the ticket office is                   B．where is the ticket office C．the ticket office is where                      D．the ticket office where is 答案：A与氢气完全加成后，不可能生成2，2，3﹣三甲基戊烷的烃是（ ）A.（CH3）3C﹣CH=CH2B.CH2=C（CH2CH3）C（CH3）3C.HC≡CCH（CH3）C（CH3）3D.（CH3）3CC（CH3）=CHCH3