Sport Balloons There are two kinds of sport balloons: gas and hot air. /Hot air balloons are safer than gas balloons, /which

admin2018-04-04  45

问题  

选项

答案 Sport Balloons There are two kinds of sport balloons: gas and hot air. /Hot air balloons are safer than gas balloons, /which may catch fire. /Hot air balloons are preferred by most balloonists in the United States because of their safety. /They are also cheaper and easier to manage than gas balloons. / Despite the ease of operating a balloon, /pilots must watch the weather carefully. /Sport balloon flights are best early in the morning or late in the afternoon, /when the wind is light.

解析
转载请注明原文地址:https://kaotiyun.com/show/vUxK777K
0

随机试题
最新回复(0)