题目

There are a number of reasons that can be given as to why children should be taught swimming at a young age. If your child knows the basic swimming skills, you can be at peace when your child is near the water. If you are in the process of teaching your child how to swim, then here are some points that you should keep in mind.♦ Help your child pick a bathing suit. If you child wants to wear bathing suit and get wet then it is certain that your child will be able to handle the water.♦ If the pool has steps, then it is great. Start from these to help your child gain some confidence. You shou材料1：“嫦娥一号”月球探测卫星于北京时间2007年10月24日18时05分在西昌卫星发射中心由“长征三号甲”运载火箭发射升空。 材料2：2007年11月26日，中国国家航天局正式公布“嫦娥一号”卫星传回的第一幅月面图像。 材料3：2007年12月12日上午10时，庆祝我国首次月球探测工程圆满成功的大会在北京人民大会堂举行。 材料4： “嫦娥一号”发射时，担负航天测控任务的海上测控点有两个，其中“远望三号”指挥船位于南太平洋赤道附近某海域。   据此回答问题 下列属于天体的是                                                                                                  （　　） ①地球　　              ②河外星系　           ③天空中飘动的云    ④天空中飞行的飞机　 ⑤“嫦娥一号”卫星    ⑥流星体        A．①②③　　        B．　①⑤⑥　　     C．②③④　　　     D．③④⑤