下列说法正确的是   ▲   A.黑体辐射电磁波的强度按波长的分布

下列说法正确的是   ▲  

A黑体辐射电磁波的强度按波长的分布只与黑体的温度有关

B粒子散射实验说明原子核是有内部结构的

C比结合能越小,表示原子核中核子结合得越牢靠,原子核越稳定

D玻尔的原子理论第一次将量子观念引入原子领域,成功地解释了氢原子光谱的实验规律

答案

AD 

相关题目

----Did you tell him that we’ve put off the meeting?    ----No. He rushed ou
----Did you tell him that we’ve put off the meeting?    ----No. He rushed out _____ I could say anything.    A. in case            B. after              C. before    
已知动点P的竖坐标为0,则动点P的轨迹是( )A.平面B.直线C.
已知动点P的竖坐标为0,则动点P的轨迹是( )A.平面B.直线C.不是平面也不是直线D.以上都不对
如果三角形的两边长分别为3cm和5cm,第三边是偶数,则此三
如果三角形的两边长分别为3cm和5cm,第三边是偶数,则此三角形的第三边长可为(     ) A.2cm  B.3cm  C.4cm  D.8cm
为完成全面建设小康社会的奋斗目标,中共十六大要求“发
为完成全面建设小康社会的奋斗目标,中共十六大要求“发展要有新思路,改革要有新突破,开放要有新局面,各项工作要有新举措”。党的十六大之
Our army is well _______ (装备).  
Our army is well _______ (装备).  
 We had different students in some classes, so _____ was a struggle for me to
 We had different students in some classes, so _____ was a struggle for me to remember all the faces and names.     A. it                           B. that      
Though _______ as the best player in his basketball team, he doesn’t feel prou
Though _______ as the best player in his basketball team, he doesn’t feel proud of himself. A. considering              B. to be considered  C. considered             D. c
已知·=0,||=3,||=2,则||=( ) (A)5  (B)  (C)13  (D)
已知·=0,||=3,||=2,则||=( ) (A)5  (B)  (C)13  (D)

最新题目