搜题请搜索小程序“爱下问搜题”
问题 选择题

遥感（RS）技术在自然灾害监测中具有重要作用，但一般不能利用遥感技术

A．迅速发现一些初发时人眼难以察觉的突发性灾害，如森林火灾、赤潮等

B．发现台风中心的位置，估计台风移动方向、速度及强风暴雨出现的地区

C．对洪水、沙尘暴、森林病虫害进行动态监测

D．分析灾害发生的原因

答案

答案：D

遥感技术的主要用途表现在对地物的感知和制图，而对事物变化原因的分析，不是其应用范围。

完形填空

在短文的空格中填入恰当的词 (每个空格只能填一个单词)，使全文意义完整、通顺。

Last summer my family moved to a new neighborhood. Ramon, a boy living right across the street from our new house, came by to ___小题1:___ hello. When school started, I was happy that Ramon was in my class. One day Mr. Rosen, our teacher, told us about the big Art and Music Festival coming up at school. He said, “Who wants to be in the show? Raise your hands.” The class became restless. About a dozen hands went up. I started to raise my hand, ___小题2:___ I stopped and put it down. I couldn’t say a word. I just sat there while the others volunteered. “There is a piano in the hall. We could use a piano player,” said Mr. Rosen. Still I said nothing. And ___小题3:___ asked me to perform at the festival, for I had never even told anyone that I could play the piano. Every day when I went home to learn the sonata in C Major(C 大调奏鸣曲) by Mozart , I told Ramon I had to do my homework. Every day it ___小题4:___ better and better and I grew more and more disappointed that I had not ___小题5:___ to play at the festival. One afternoon I was practicing as usual. Suddenly there was a ___小题6:___ at the door. I was in the middle of Mozart’s Sonata, so I kept on playing. My mom opened the door and told me it was Ramon. “What nice ___小题7:__! ” I heard him say. Then he walked into the living room and saw me ___小题8:___ the piano. When I finished, Ramon jumped up and clapped. He ran over to me and gave me a pat on the back. “Matthew,” he said, “that was great! I never even knew you could play the piano! ___小题9:___ were you keeping this a secret?” I kept quiet for a minute. I felt foolish. Ramon had stopped by to borrow my math book because he had left his at school ___小题10:__ mistake. Now he knew I played the piano. The next day in school, Ramon told Mr. Rosen that I was a great pianist. The rest is history.
查看答案
选择题

下列各事例中，属于红外线技术应用的是：[ ]

A．照相机用滤镜来照相

B．验钞机用来辨别钱币的真假

C．医院用照射的方法来灭菌消毒

D．家中电视机的遥控器用来控制电视机的音量和频道

查看答案