多项选择题
先张法适用于生产（）。
A.中小型预制构件B.预应力桥跨结构C.吊车梁预制构件D.大型屋架预制构件E.特种结构构件
单项选择题 下面不是互换交易内容的是( )
单项选择题 A．Since 2002.B．Since 2003.C．Since 2004.D．Since 2005.
单项选择题 A．It helps children to make their own decisions.B．It gives a measure of choice in making decisions about how the money is spent.C．It gives a sense of independence.D．It can satisfy the children's necessities.
