阅读理解

Found

A set of keys. There is a toy bear on it, too.  If you lose it, call me at 880-1167313.  I'm from No. 2 Middle School.

                                                                                            Jack  Lost

An old bike.  It's black with a plastic(塑料的)basket.  Its seat is yellow.  If you find it, please return it to me.  I live in the fifth floor in Building 2.

    Miller   Lost

Yesterday, I lost a novel written by Mo Yan.  Its name is Frog.  I’m eager(渴望的)to find it.  If you find it somewhere, can you return it to me? I’m from Class 6, Grade 7.

                                               Louis

①全面禁止捕捞                  ②实行休鱼期，划分休鱼区

③控制鱼网网眼大小              ④制定相应的法律法规．

赣州某中学研究性学习小组，对地球运动及其产生的地理现象进行探究时遇到了一些问题，请结合所学地理知识予以解答

下列材料属于复合材料的是（ ）