搜题请搜索小程序“爱下问搜题”
问题 选择题

金刚石和石墨都是碳的单质，石墨在一定条件下可以转化为金刚石并需要吸收能量。已知12g石墨或金刚石完全燃烧时放出的热量依次为Q1和Q2，下列说法错误的是[ ]

A．Q1< Q2

B．石墨不如金刚石稳定

C．石墨具有的能量比金刚石低

D．石墨与金刚石完全燃烧，生成的二氧化碳一样多

答案

答案：B

材料分析题

某校在学生中积极开展学习贯彻十七大精神系列宣传教育活动，下面是该校宣传橱窗的一个片段：

运用所学知识，简要分析橱窗中列举的南京市新举措是如何体现科学发展观的科学内涵的？

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                                
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单项选择题

在小儿鞘膜积液的治疗中，下列正确的是（）

A.鞘突高位结扎

B.注射治疗

C.鞘膜翻转缝合

D.鞘膜切除

E.中药治疗
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