The astronauts are going to explore the space, ___ they have to train hard for a long time. A. before B. after C. while D. when 相关知识点: 试题来源: 解析 A。解析:句子中宇航员要去探索太空,他们需要长时间艰苦训练。“before”表示在某个动作之前,这里就是说在探索太空之前要训练,逻辑正确...
Astronauts need to undergo extensive training before going into space. Which of the following is NOT a type of training that astronauts receive? A. Physical training. B. Mental training. C. Musical training. D. Technical training. 相关知识点: ...
Space travelers have had to eat strange foods. One example is liquid salt and pepper. They have also had to eat dried shrimp cocktail. The astronauts add water to it to make it a liquid again before eating. However, the menu for astronauts is going to grow. Scientists have been growing ...
Before astronauts can go into space, they have to have the right suit.That’s why NASA(美国国家航天和航空局)scientists are developing a new kind of space suit——lighter and more flexible than before.These new space suits will have lots of mobility(灵活性)for the astronauts, but will not...
By going on spacewalks, astronauts can fix things instead of bringing them back to Earth to fix. When astronauts go on spacewalks, they wear spacesuits to keep themselves safe. Inside spacesuits, astronauts have the oxygen (氧气) they need to breathe. They have the water they need to ...
On June 16, 2012, Liu Yang, as one of the crew of Shenzhou-9 spacecraft, became the first female Chinese astronaut going into space. The main tasks of the Shenzhou-9 mission included the manual docking procedure conducted between the Shenzhou-9 and the orbiting space lab module Tiangong-1...
In space,changes in the environment and loneliness test the minds and bodies of astronauts.So the training for astronauts is very hard." Astronauts take over 200 different training subjects before going to space," Huang Weifen,chief designer of the astronaut system for China's ...
用括号内所给单词的适当形式填1. The astronauts need lots of(train)before going into space.2. [2024重庆
They can repair satellites or spacecraft that are in space. By going on spacewalks, astronauts no longer need to bring equipment back to Earth to fix,When astronauts go on spacewalks, spacesuits keep them safe. Inside spacesuits,astronauts have the oxygen they need to breathe, They have ...
根据第一段的句子“Fifty years ago, astronauts traveled to space in rockets designed, built, and maintained by NASA and paid for by government funding. Today, the astronauts are often billionaires enjoying a journey into low orbit on a rocket they paid for from their billion-dollar bank ...