提高老百姓的幸福感，让老百姓“活得有尊严”、露出“幸福之笑”已成为安徽各地“十二五”期间经济社会发展的首要追求。为此，安徽省各地政府应该（  ）

选词填空。

excited, skill, may, they, without, but, include, part

    American teenagers(青少年)enjoy doing part-time jobs．They think it's an important____of growing up．They can learn some important____by doing part-time jobs and they can also make some money in this way．
    American teenagers usually begin to do part-time jobs at the age of 14．On weekdays，they____go to work a few hours a week after school．They usually work for longer at weekends．
    In summer,American teenagers are____if they find part—time jobs at camps or swimming pools．These jobs can bring____much fun．
    Some difficult jobs____teaching， nursing and police work．____these jobs can be helpful for their future．When they grow up，the students with work experience are more likely (可能的)to be successful than those____work experience．

平衡木运动员表演时，起协调全身肌肉的活动，用以维持身体平衡的结构是（   ）

计算：

（1）（$\sqrt{48}$﹣4$\sqrt{\frac{1}{8}}$）﹣（3$\sqrt{\frac{1}{3}}$﹣2$\sqrt{0.5}$）

（2）$\left(\sqrt{8}+\sqrt{48}\right)\left(\sqrt{2}-\sqrt{12}\right)-{\left(\sqrt{2}-\sqrt{3}\right)}^2$．

____是古希腊著名的数学家、几何学鼻祖。