“2004年10月14日第六届上海国际艺术节开幕，京剧艺术表演家尚长荣出演京剧《贞观盛事》中耿直进谏的名臣……”你知道尚长荣扮演角色是（    ）

    Michael Jackson was one of the world's best singers. He was born in the middle west of the city of Gary， Indiana， in 1958. He began singing with his four brothers. They called the group， “The Jackson Five”. The group became very popular after appearing on a television program. In 1970 the group made their  first record with the name of I Want You Back. It was very popular. One of their hit records was Never Say Goodbye.

    Michael was good at dancing as well as singing， for example， his dance moves and moon walking. He was asked to act in a film in 1978 for the first time， and in the same year he made a record on his own， which was sold eight million copies all over the world.

    Michael nearly didn't go out because he was too famous. Once his fans went off in a faint(晕倒）when they saw him at the concert. No one can do it by now. He lived in a large house and kept lots of animals. He never ate meat. He often raised money for charity. This made him win the Guinness world Records（吉尼斯世界纪录）in 2006. He died on June 25th， 2009， but he would live in our hearts forever.

设a,b为实数，下面四个命题.
①若a＞b, 则a²＞b²         ②若a²＞b², 则a＞b
③若$\left|a\right|$＞$\left|b\right|$， 则a²＞b²     ④若a²＞b² 则$\left|a\right|$＞$\left|b\right|$
其中正确的有(    )

1952年，以纳赛尔为首的革命力量发动武装起义，赢得埃及的真正独立。二十世纪五六十年代，非洲先后有三十多个国家取得独立。其中，仅1960年一年就出现十七个独立国家，因此这一年被称为“非洲独立年”。1990年3月纳米比亚的独立，标志着欧洲殖民者入侵和奴役非洲长达五个世纪历史的结束。上边材料反映了二战后 （   ）

自2008年至今5年来,“我推荐、我评议身边好人”活动持续深入开展,中华大地涌现出一大批道德模范、中国好人。他们或充满爱心、助人为乐,或见义勇为、舍生忘死,或诚实守信、坚守正道,或敬业奉献、虔诚勤勉,或孝老爱亲、血脉情深。他们的高尚品德,温暖了人心,感动了中国,为全社会树立了榜样。

结合材料,运用“加强思想道德建设”的有关知识,说明开展“我推荐、我评议身边好人”活动的意义。