漫画《悬殊天平》启示我们必须(　　)

①坚持和完善以按需分配为主体、多种分配方式并存的分配制度

②分配中,提倡奉献精神,落实分配政策

③改革收入分配体制,根除贫富差距

④进行收入分配改革,努力实现分配公平

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．

    Jj

It is ____ important Chinese festival.

用大小合适的方木料制作如图所示的构件，根据所划的线判断，下列锯割的位置中合理的是（   ）