题目

 There was no time left. He _____at his lovely sleeping child and then hurried away.    A. watched       B. noticed           C. stared         D. glanced 答案：  D集合A={x||x-2|+|x|≤a}，B={x|log311+x＜1}（Ⅰ）若a=4，求A∩B；（Ⅱ）若A⊆B，求a的取值范围．