Professional astronauts are becoming ________ aware of how amateur astronauts can make valuable ________ their research. Furthermore, telescopes with small apertures(孔径) are ________ in some studies.
(1 at work, 2 contributions to, 3 increasingly)
(1 at work, 2 contributions to, 3 increasingly)
举一反三
- How many astronauts are there in the spaceship
- 6. Why can all the astronauts sleep at the same time?
- How can technology help us at work?Technology at work makes it easier to communicate with other companies. Furthermore,______.
- Astronauts now ____________: Pilots, the astronauts who actually fly the space shuttle, account for one-third of the astronaut corps. Mission specialists run experiments in orbit, work the shuttle's robot arm and go on spacewalks. They're doctors, engineers and scientists and can command stays on the space station. They are the remaining two-thirds of the corps.
- Why would astronauts cover each bite of food in space（） A: Because small pieces of food would fall down to the floor. B: Because weightless pieces of food might make trouble when they travel around. C: Because they haven’ t enough food for longer trips. D: Because astronauts don’ t want to waste foo