Now，peopleusesatellites（卫星）todomanythings．Sofar，manhasi...
问题详情：Now，peopleusesatellites（卫星）todomanythings．Sofar，manhasinventedfourkindsofsatellites． 1 ofthemisusedtostudytheweather．Weathersatellitescan 2 anypartoftheworld．Theycanwatchcloudsandstrongw...