B. Problems faced by astronauts on long-term space flights. C. How to use human urine to produce food in space. D. A possible new way to grow food in space. 相关知识点: 试题来源: 解析 D 解析: 主旨大意题。根据第二段中“Recently, a team led by Federico Maggi at the University of...
Such events can expose astronauts to a deadly amount, can disable satellites, cause power failures on Earth and disturb communications," Professor Harrison added. The risk is greatest during a solar maximum when there is the greatest number of sunspots. Next week in America, NASA is scheduled ...
Recently published in the journalCell, these results used data collected over decades of experimental research on theInternational Space Station, including samples from 59 astronauts.Studies such as these are critical to understanding the effects of low gravity, radiation, confined spaces, and more asN...
Jasmine often ___ the problems in the office. A.deal of B.deal in C.deal with D.deal for 查看答案
Such events can expose astronauts to a deadly amount, can disable satellites, cause power failures on Earth and disturb communications," Professor Harrison added. The risk is greatest during a solar maximum when there is the greatest number of sunspots. Next week in America, NASA is scheduled ...