题目

图示为黑体辐射的实验规律，关于黑体辐射以下叙述正确的是（） A . 随温度升高，各种波长的辐射强度都有增加 B . 随温度降低，各种波长的辐射强度都有增加 C . 随温度升高，辐射强度的极大值向波长较长的方向移动 D . 黑体辐射电磁波的情况除与温度有关外还与材料的种类及表面状况有关 答案：AHaving been attacked by terrorists, ________. A．doctors came to their rescue B．the tall building collapsed C．an emergency measure was taken D．warnings were given to tourists