补写出下列名篇名句的空缺部分。(只选3小题)(6分)
①( 13 ﹣ 18 )×24
②15÷15× 83
③2÷( 34 + 12 )
每年全国人民代表大会都在北京召开,体现的北京城市职能是( )
A father in the UK has a wonderful idea to send his kids to school on time. He takes his sons to school in a white tank(坦克).
下列结构属于器官的是