题目

完形填空 Man has invented four kinds of satellites .The first kind of sate
完形填空
Man has invented four kinds of satellites .The first kind of satellites studies the （1）of the earth .They are used to make maps .They also help countries to see where they can（2）oil or gold .
The second kind of satellites is used to（3）ships and planes .A ship or a plane can send a message to the satellite and can find out （4）it is .
The third kind of satellites studies the weather .These satellites（5）clouds and strong winds moving across the earth .They warn countries to make preparation when very（6）weather is coming .They（7）of the earth from thousands of miles above it and send the photos to weather stations on the ground .
（8）kind is used for communication .Telephone calls（9）countries can be sent by these satellites .Some can carry hundreds of calls at one time .The call is to be sent to be satellite and then the （10）sends it to a station in the country which is being phoned .These satelli

提问时间：2021-01-23

答案

1.C
2.A
3.B
4.C
5.A
6.C
7.C
8.C
9.A
10.B