[填空题]Two astronauts face a not-so-merry Christmas after being told to ration their food and hope a cargo ship with extra supplies docks on Dec. 21. The crew aboard the International Space Station (ISS) only has enough supplies to last a month and must wait until the day after Western Christmas for a Russian cargo ship to deliver new supplies, space officials said on Friday.
Russian cosmonaut Salizhan Sharipov and American Leroy Chiao have been asked to cut out calories equal to three cans of Coke from their daily diet--around 10 percent of their daily allowance and an amount that would be little noticed, NASA said.
Russian officials, quoted in the local media, have accused the previous crew of overeating during their one-month mission earlier this year, leaving a deficit of meat and milk and a surplus of juice and confectionery (糖果).
The Dec. 24 launch of the next Progress is now vital for the crew, stationed in orbit since October. It is due to dock with the ISS on Dec

[填空题]Two astronauts face a not-so-merry Christmas after being told to ration their food and hope a cargo ship with extra supplies docks on Dec. 21. The crew aboard the International Space Station (ISS) only has enough supplies to last a month and must wait until the day after Western Christmas for a Russian cargo ship to deliver new supplies, space officials said on Friday.
Russian cosmonaut Salizhan Sharipov and American Leroy Chiao have been asked to cut out calories equal to three cans of Coke from their daily diet--around 10 percent of their daily allowance and an amount that would be little noticed, NASA said.
Russian officials, quoted in the local media, have accused the previous crew of overeating during their one-month mission earlier this year, leaving a deficit of meat and milk and a surplus of juice and confectionery (糖果).
The Dec. 24 launch of the next Progress is now vital for the crew, stationed in orbit since October. It is due to dock with the ISS on Dec

[填空题]After the two therapists had misdiagnosed him, the author diagnosed himself.

[填空题]After spending two days (argue) （） about where to go for their holidays, finally they decided not to go anywhere.

[单项选择]For more than thirty years after astronauts first set foot on the Moon, scientists have been unable to unravel the mystery of where the Earth’s only satellite came from. But now there is direct evidence that the Moon was born after a giant collision between the young Earth and another planet.
Previous studies of rocks from the Earth and the Moon have been unable to distinguish between the two, suggesting that they formed from the same material. But this still left room for a number of theories explaining how—for example, that the Moon and Earth formed from the same material at the same time. It was even suggested that the early Earth spun so fast it formed a bulge that eventually broke off to form the Moon.
Franck Poitrasson, and his colleagues at the Swiss Federal Institute of Technology have compared Moon rocks with rocks from Earth and discovered a surprising difference. They analysed the weight of the elements present in the rock using a highly accurate form of mass spe
A. the differences between the Earth and the Moon
B. how man manages to set foot onto the Moon
C. the collision between the Earth and the Moon
D. the origin of the Moon

[填空题]After spending two days (argue)（）about where to go for their holidays, finally they decided not to go anywhere.

[填空题]After spending two days (argue) ______ about where to go for their holidays, finally they decided not to go anywhere.

[单项选择]The two astronauts have splashed down in the Pacific Ocean, only five miles from the aircraft carrier that was（）for the recovery mission.
A. detach
B. dispatched
C. devote
D. dismantled

[单项选择]

In about two years, NASA astronauts will go into space with personal assistants. Robotic assistants, of course. About the size of softballs, these personal satellite assistants (PSAs) can float throughout the space shuttle or space station, automatically monitoring life support systems, snapping photos, and taking over monitoring tasks from failed sensors. They’re equipped with collision avoidance system so they won’t bump into anything Naturally, they’re wireless. Thanks to their videoconferencing capabilities, the PSAs offer a virtual presence for ground crews and scientists, letting them advise astronauts--in real time --in the midst of their experiments. The PSAs. will be stowed until the spacecraft reaches orbit (天体运行的轨道). And then activated by the astronauts, ground crews, or even by the spacecraft itself or other PSAs requesting help, they can work automatically or respond to voice or radio commands, and can exchange information with the spacecraf
A. PSAs can automatically monitor life support systems, snapping photos, and taking overmonitoring tasks from failed sensors.
B. They are capable of videoconferencing so that they offer a virtual presence of ground crows and scientists.
C. They can go where no man has gone since the vehicles were first assembled.
D. All of the above mentioned.