题目

 No sooner ___ down on bed ___ the telephone rang. A. had he lain; than   B. had he lied; when  C. did he lie; than    D. had he laid; before 答案：A读下列句子，在括号中填适当的关联词 　　胡萝卜(　　)煮熟或晒干，所含的胡萝卜素(　　)没有什么变化。