题目内容
（请给出正确答案）
Mars roll's antibiotic treatment has replaced surgery as standard care.
A．Y
B．N
C．NG
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更多“Mars roll's antibiotic treatme…”相关的问题
What was discovered by NASA's Phoenix Mars Lander on Mars？
A．Vast lakes.
B．Flowing rivers.
C．Water in a soil sample.
D．Living things.
It can be inferred form. the passage that ______.
A．there was once a wave of Mars exploration by scientists.
B．life has existed on Mars.
C．Lowell's claim is proved incorrect today.
D．It's a waste of time to try to answer the question concerning life on Mars.
Which of the following is true according to the two passages？
A．Walk'n Roll to School Day is a tradition in the community.
B．On Walk'n Roll to School Day cycling racing will be held.
C．Melissa works in Danielle's son's school.
D．Melissa is Danielle's old friend.
What is the "seven minutes of terror" according to NASA engineers？
A．Rover"s signals will delay seven minutes to travel to Earth from Mars.
B．Engineers won"t be able to control or witness the Mars rover"s seven minutes" soft landing.
C．The Mars rover needs seven minutes to increase speed for landing.
D．Curiosity will be lowered to the Martian surface on cables in seven minutes.
What does Danielle want to do for Walk'n Roll to School Day？
A．To guide bicycles
B．To hold seminars
C．To publicize the event
D．Whatever the event needs her
U.S. Scientists Confirm Water on Mars
NASA scientists said that Mars was covered once by vast lakes, flowing rivers and a variety of other wet environments that had the potential to support life.
Laboratory tests aboard NASA's Phoenix Mars Lander have identified water in a soil sample. The lander's robotic arm delivered the sample Wednesday to an instrument that identifies vapors produced by the heating of samples.
"We have water," said William Boynton of the University of Arizona, lead scientist for the Thermal and Evolved-Gas Analyzer, or TEGA. "This is the first time Martian water has been touched and tasted. "
The robotic arm is a critical part of the Phoenix Mars mission. It is needed to trench into the icy layers of northern polar Mars and deliver samples to instruments that will analyze what Mars is made of, what its water is like, and whether it is or has ever been a possible habitat for life.
The soil sample came from a trench approximately 2 inches deep. When the robotic arm first reached that depth, it hit a hard layer of frozen soil. Two attempts to deliver samples of icy soil on days when fresh material was exposed were foiled when the samples became stuck inside the scoop. Most of the material in Wednesday's sample had been exposed to the air for two days, letting some of the water in the sample vaporize away and making the soil easier to handle.
"Mars is giving us some surprises," said Phoenix principal investigator Peter Smith of the University of Arizona. "We're excited because surprises are where discoveries come from. One surprise is how the soil is behaving. The ice-rich layers stick to the scoop when poised in the sun above the deck, different from what we expected, from all the Mars simulation testing we've done so far. "
Since landing on May 25, Phoenix has been studying soil with. a chemistry lab, TEGA, a microscope, a conductivity probe and cameras. The science team is trying to determine whether the water ice ever thaws enough to be available for biology and if carbon-containing chemicals and other raw materials for life are present.
The mission is examining the sky as well as the ground. A Canadian instrument is using a laser beam to study dust and clouds overhead.
"It's a 30-watt light bulb giving us a laser show on Mars," said Victoria Hipkin of the Canadian Space Agency.
A full-circle, color panorama of Phoenix's surroundings also has been completed by the spacecraft.
"The details and patterns we see in the ground show an ice-dominated terrain as far as the eye can see," said Mark Lemmon of Texas A & M University, lead scientist for Phoenix's Surface Stereo Imager camera. "They help us plan measurements we're making within reach of the robotic arm and interpret those measurements on a wider scale. "
What was discovered by NASA's Phoenix Mars Lander on Mars？
A．Vast lakes.
B．Flowing rivers.
C．Water in a soil sample.
D．Living things.
听力原文：W: You are not much of a rock'n roll fan, are you？
M: It's far from being my favourite kind of music, that's for sure.
Q: What does the man imply？
(14)
A．He doesn't like rock'n roll.
B．It's a long way to the record store.
C．He likes only rock'n roll.
D．He isn't hot now that he has a fan.
A、It's none of you business
B、No, I don't think so
C、Sure. Sorry to disturb you
Text
【C1】______Space Agency is planning to【C2】______a spacecraft to the planet Mars. The spacecraft will be called Mars Observer. The project was to have【C3】______place in 1990. But it has been postponed. The Space Agency now【C4】______to send the spacecraft to Mars in 1992.
The Mars Observer is to【C5】______from an America's space shuttle. It will then【C6】______around tile North and South Poles of Mars. The spacecraft will have cameras to【C7】______pictures of the atmosphere and surface of Mars. Its major task is to look【C8】______signs of life.
The last voyage【C9】______Mars was in 1976. That was【C10】______the two American Viking spacecrafts land- ed on the planet. The next voyage was planned【C11】______1988 by the Soviet Union.
America's Mars Observer Project will【C12】______about $ 25.000.000. The high cost is one reason the Space Agency postponed the project. A【C13】______of scientists have criticized that decision. Carl Sagan of Cornell university【C14】______it "a great mistake". And the head of the Planetary Society said the project should not be postponed now【C15】______it appears to【C16】______support in Congress. Congress must【C17】______money for it. Some scientists have proposed a solution that would save【C18】______time and money. They say the Mars Ob- server be launched in 1990【C19】______planned, but on a traditional rocket【C20】______of the space shuttle.
【C1】
A．America
B．American
C．America's
D．Americans
