专业优势在有德者身上，能够高人一等地造福社会；专业优势在无良者手中，则成了“谋财害命”的捷径。下列对这一观点理解正确的是（ ）
①思想道德修养比科学文化修养更重要
②思想道德修养制约科学文化知识作用的发挥
③思想道德修养与科学文化修养是互相促进的
④文化知识水平的髙低取决于思想道德水平
A：①②
B：②③
C：③④
D：①④
have, at, like, usually， watch, homework, after, play, come
I have a friend. His name is Li Daming. He often gets up ____ six o'clock in the morning. He ____ breakfast at seven. He goes to school five days a week. After school，he ____ plays games for half an hour. Look! What is he doing？He is ____ basketball. In the evening he does his ____ and he likes listening to music. He often ____TV for half an hour____ he finishes his homework. He goes to bed at ten o'clock. Do you ____ him?
世界上陆地主要集中那个半球，海洋主要集中在那个半球（ ）
（2013•张掖）“2013年，我国老年人口数量将突破2亿大关，达到2.02亿，占全国总人口的14.8%。”我国上世纪50年代“婴儿潮”时出生人口，现在正在形成第一个老年人口增长高峰。这对我国社会发展的影响主要是（ ）
