已知扇形的面积为12π，半径等于6，则它的圆心角等于______度．
题型：填空题
问题：
已知扇形的面积为12π，半径等于6，则它的圆心角等于______度．
题型：填空题
短文改错（共10小题；每小题1分，满分10分）
此题要求改正所给短文中的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个勾（ √ ）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线（＼）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（ ），在该行右边的横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
Born to be the basketball player, Kobe Bryant 81. __________
showed his shooting talent in an early age. He has always 82. __________
occupied with proving his skills on the court and improving 83. __________
himself. Having enjoyed a successfully high school basketball 84. __________
career, Kobe went straight into the NBA after graduated. So 85. __________
far, Kobe has led the Lakers to four NBA championships. 86. __________
Thus, he is never content with his past achievements. He 87. __________
is famous for getting his teammates stay up late practising. 88. __________
When he learned a new move, he asks his teammates to practise 89. __________
it with him after it is perfect. “When you win, you have to 90. __________
constantly look for ways to get better.” Kobe said.