问题 单项选择题

若将散热器沿垂直方向分成若干级,每组()层,在每组内采用双管形式,而组与组之间则采用单管连接,这样就组成了单双管混合式系统。

A.1~2

B.2~3

C.3~4

D.4~5

答案

参考答案:D

材料分析题

达尔文小时候“是个平庸的孩子”,但由于他对打猎、旅游、采集标本、观察动植物的特殊好奇与兴趣,从而引导他潜心观察,勤于思考,最后写出《物种起源》,创立了“进化论”的学说。爱因斯坦也曾说过:“我没有特别的天赋,我只有强烈的好奇心而已。”

(1)阅读材料后,晓明想:只要有了好奇心,就能有所发明、创造。你同意这种观点吗?请说出你的理由。

                                                                                                                                                               

                                                                                                                                                              

                                                                                                                                                             

(2)科学文化知识的学习也需要创新,你能说出几种在学习中创新的方法吗?

                                                                                                                                                              

                                                                                                                                                             

                                                                                                                                                              

单项选择题