问题 单项选择题

关于拦截网或“天钩”回收以下正确的是()

A.用拦截网系统回收无人机是目前世界中型无人机较普遍采用的回收方式之一

B.拦截网系统通常由拦截网、能量吸收装置组成

C.能量吸收装置与拦截网相连,其作用是吸收无人机撞网的能量,免得无人机触网后在网上弹跳不停,以致损伤

答案

参考答案:C

写作题
书面表达。
     假设你是某文杂志的“知心姐姐”(Agony Sister), Helen, 请阅读下面的这封求助信,并根据信的
内容写一封回信。
     要求:1. 80词左右;
               2. 文中不要出现作者本人的真实信息。 
    
Dear Helen,
     Last Sunday, my classmates and I went to the park. I wanted to take some photos. My father was
out at that time, so I took his camera without telling him. Unfortunately, the camera was out of my bag
and dropped on the ground when I was climbing the hill. It didn't work at all. I put it back quietly after I
returned home. And I haven't told him till now. when I face to my father, I feel terrible. What should I
do?
                                                                                                                                 Yours,
                                                                                                                                 David
Dear David 
     ______________________________________________________________________________________
_________________________________________________________________________________________
_________________________________________________________________________________________
                                                                                                                                        Best wishes,
                                                                                                                                                 Helen
单项选择题