From Monday to Friday Daniel wakes up at six a.m. and then has breakfast at seven a.m.. Daniel likes his school very much. He leaves(离开) home at seven ten and gets to school at seven twenty. He has lessons from eight ten to eleven thirty. He's good at Maths. He loves English, too. He eats lunch at school at eleven forty. He does after-school activities at four twenty in the afternoon. He plays football, badminton and volleyball. Sometimes he swims. Daniel goes home at five o' clock p.m. He eats dinner at six forty p.m. Then at seven o'clock he watches TV. He likes watching TV because he wants to l earn more about the world. At eight p.m. ，he does his homework. He goes to bed at nine o' clock.

回答问题，每题不超过5个单词

材料一：2017年12月12-13日，******在江苏徐州调研时指出：国有经济是中国特色社会主义的重要物质基础，是中国特色社会主义经济的“顶梁柱”。

材料二：十九大报告指出：“经过长期努力，中国特色社会主义进入了新时代，这是我国发展新的历史方位。……中国特色社会主义进入新时代，我国社会主要矛盾已经转化，但我国的基本国情没有变，我国的国际她位没有变。”

材料三：中国人对“中国梦”的艰苦求索，从来没有停止过。从新中国“站起来”，到改革开放“富起来”，再到新世纪“强起来”，一系列梦想变为现实。

海洋污染物危害出现全球化趋势的主要自然原因是（    ）

9的平方根是（　　）