四六级考试

【单选题】When the United States goes back to the moon in the next decade, what will be different from theApollo missions of the 1970s
For one thing, this time, NAS
A、is planning to stay for a long time.Deputy administrator ShanaDale announced that when the U.S. returns to the moon in 2020, it will establish an outpost for a permanent habitat. "It is the next step--next logical step-- in what we do in space in terms of moving beyond low-earth orbit with the ability to go back to the moon, hopefully on to Mars and other destinations," she saiD、
TheApollo missions were quick sorties to gather samples and bring them back toEarth. Scott Horowitz, who leads the lunar exploration planning, says the next phase of moon exploration will still include short trips, but the primary mission will be building a habitat.
The astronauts will ride anAres 1 launch vehicle in an Orion crew capsule. TheAres launch system will carry a lunar lander plus modules(登月仓) which will become a habitat that can house four astronauts as early as 2020, and double the number in 2024.
This habitat will probably be located on one of the moon’s poles because of constant sunlight that will provide solar power to operate the habitat. The rim of Shackleton crater, at the lunar south pole, is particularly attractive because there may be ice hidden in the soil there. It could be useful, not just for drinking water, but could be broken down to generate oxygen and hydrogen-based rocket fuel.
Dale says NAS
A、definitely has a preference for the south pole, but a final decision has not been made. "That determination won’t be made until we get data back from the Lunar Reconnaissance Orbiter (LRO), which will be making detailed maps of the moon." LRO is a probe slated for launch in 2008.Dale added that NAS
A、is considering the eventual use of nuclear power on the moon, something sure to be controversial.
While plans to return to the :noon are creating excitement at NASA, there are concerns about how PresidentBush’s exploration plan will be fundeD、NAS
A、is paying as it goes now, but there isn’t enough money to fund the program as conceived on the drawing boarD、
Earlier this year, the GeneralAccounting Office reported a big gap between NASA’s estimated cost for returning to the moon and the agency’s projected budget from now until 2025. It’s a gap that starts at $18 billion, but could run much higher.
NAS
A、is talking to other countries about partnering with them in this venture, a partnership that could be financially critical.
Which of the following plans of NAS
A、is controversial
A、Establish a habitat on the moon.
B．Use nuclear power on the moon.
C．Make detailed maps of the moon.
D．Go back to the moon.

网考网参考答案：B
网考网解析：
细节题。文章倒数第四段指出，戴尔还提到NASA正考虑最终在月球上使用核能量，而这肯定会引起争议，所以B正确。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>