为下列句子排序,组成一段完整通顺的对话。
(____)A.Look!It's in the box.
(____)B.Is it under the chair?
(____)C.Where is my cat?
(____)D.Thank you very much.
(____)E.No,it isn't.
从文中找出下列词语的近义词。
恳请____ 艰辛____
迫在眉睫____
深切____ 冤枉____
下列方程组中是二元一次方程组的是( )
总共135元.
方程____