题目内容


要想学好物理学必须注重对物理概念和规律的理解,下列说法中正确的是                                                                                                

              A.一定量的水凝固成冰的过程中,温度不变,内能减小                                                                                              

              B.物质的比热容跟物体吸收或放出热量的多少有关                                                                                                       

              C.超导体电阻为零,适合做电热丝                                                                                                                   

              D.电路中发光越亮的电灯,它的额定功率就越大                                                                                                           

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