【翻译】当气球充满氢气时,它们可以在天空中飞得很高。【解析】fill的意思是“装满,使充满”,动词,be filled with的意思是“被...充满”,固定搭配。故本题的句子是:When balloons are filled with helium they can fly very high in the sky.故答案是filled。反馈 ...
百度试题 结果1 题目29. Which of the following can be used to fill weather balloons?B Aa argon B helium Coxygen Dnitrogen 相关知识点: 试题来源: 解析 B 反馈 收藏
Chris Snyder
I get the idea from the film up《飞屋环游记》.Look at the photo! Isn't it a cool home? Do you think it is a strange idea? It is a wooden house, so it is light. I am going to tie some helium(氦气) balloons to the house, so it can fly in the a...
gingerly step outside far enough to fill it with snow, and then slam on the door on that madness and get back inside. Dump said snow on rimmed baking trays and let your kids make miniature snowmen, or race tracks for cars, or tiny snowballs. Bonus points if you put towels under the ...
valve device, that can be introduced into the neck to inflate balloons, helium, with drive to ride, complete with lanyard for the restraint manual or ballast.ENIO DI CECCO