How did astronaut food come into being?How do astronauts preserve food for long periods of time in space?NASA(the National Aeronautics and Space Administration)(美国国家航空航天局)has been researching food for space travel since the 1960's to find the best way of keeping astronauts from going ...
41.The majority of the space food is dried out or heat-treated in order toD. A.keep astronauts healthy B.keep it from breaking apart C.change its taste D.make it last longer 42.What is the text mainly about?B A.How to make space food ...
阅读理解 What does an astronaut (宇航员) eat in space? This is a question that will puzzle many as people rarely think of that. In the early space-travel years astronauts ate dehydrated (脱水的) foods that were eaten through straws(吸管). In today's space-age the food that they eat ...
Food systems and meal components are constantly under review and development at the National Aerospace and Space Administration. The goal of this work is to generate a diet that meets the nutrient requirements of astronauts and satiates them. The constraints involved in shorter- and longer-term ...
【题目】阅读理解What does an astronaut(宇航员) eatin space? T his is a question thatwill puzzle many, as people rarely think of that. In the early space-travelyears, astronauts ate dehydrated(脱水的) foods that were eaten throughstraws(吸管). In today's space-age, the food that they ...
In the early space-travel years, astronauts ate dehydrated(脱水的)foods that were eaten through straws(吸管). In today's space-age, the food that they eat is completely different.They eat food in the same way as people do on Earth.Astronauts are able to prepare and eat many kinds of ...
In the early space-travel years, astronauts ate dehydrated (脱水的) foods that were eaten through straws(吸管). In today's space-age, the food that they eat is totally different. They eat food in the same way as people do on Earth. Astronauts are able to ...
A.EatingandSleepinginSpace B.HowAstronautsEatinSpace C.FoodforSpace D.HowAstronautsSleepinSpace 试题答案 在线课程 【答案】 【1】B 【2】D 【3】B 【4】A 【解析】文章介绍在太空失重的情况下宇航员怎么吃东西及睡觉,也解释了这样做的原因。
根据第三段中But gravity doesn’t pull them to the floor when they are out of the plastic in a spaceship.They move here and there and can get into a man’s eyes or into the spaceship’s instruments.可知,食物的碎片可能在他们飞行的时候带来麻烦,故选B。 【2】D 细节理解题。根据第三段中...
What does an astronaut (宇航员) eat in space? This is a question thatwill puzzle many as people rarely think of that. In the early space-travelyears astronauts ate dehydrated (脱水的) foods that were eaten through straws(吸管). In today's space-age the food that they eat is totally di...