问题
完形填空
完形填空。 | ||||
Man has invented four kinds of satellites. The first kind of satellite studies the 1 of the earth. It is used to make maps. It also helps countries to see where they may 2 0il or gold. The second kind of satellite is used to guide ships and planes. A ship or a plane can 3 a message to the satellite, which can find out 4 the ship or the plane is. The third kind studies the weather. These satellites 5 clouds and strong winds moving across the earth. They warn countries to make preparations when very 6 weather is coming. 7 kind is used for communication. Telephone calls 8 countries can be sent by these satellites. Some can carry hundreds of calls at the same time. Each call is sent to the satellite, then the 9 sends it to a station in the country and this country is being phoned. These satellites also carry pictures; they can receive and send about eight 10 at a time. | ||||
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答案
1-5 DBCAB 6-10 CACDB