问题 单项选择题

能与IL-3协同刺激肥大细胞增殖的细胞因子是()

A.IL-4

B.IL-7

C.IL-11

D.EPO

E.GM-CSF

答案

参考答案:A

材料分析题

“嫦娥奔月”,这个千古流传的神话,正在成为中国航天的现实。2007年10月24日18时05分,中国第一颗探月卫星嫦娥一号在西昌卫星发射中心成功升空。11月26日9时40分许,中国国家航天局正式公布嫦娥一号卫星传回并制作完成的第一幅月面图像。  

在第一时间,“中国首次月球探测工程第一幅月面图像”通过新华社传到了世界各地。首幅月图的完成和公布,标志着中国首次月球探测工程“取得圆满成功”。

(1)中国首次月球探测工程取得圆满成功的原因有哪些?

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                           

(2)嫦娥一号圆满成功给我们提供了哪些重要启示?

                                                                                                                                                              

                                                                                                                                                             

                                                                                                                                                            

                                                                                                                                                            

(3)我们青少年应怎样向科技工作者学习? 

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                             

单项选择题