发布网友 发布时间:2024-07-22 01:31
共2个回答
热心网友 时间:2024-08-07 04:29
Jeffrey Kluger suggested(改为suggests) that, the completely closed space is now not the most painful factor for the astronauts to live in the space. As(改为However,) the long-time-exposure under the strong radiation energy can be really dangerous, or even fatal for the astronaut when their(改为they) are on their track around the earth or on their voyage to the moon without the attraction of the magnetic field(18)热心网友 时间:2024-08-07 04:25
应该没有。