职称英语考试

试题来源：职称英语模拟题-理工类-补全短文
【单选题】

Should the U.S. halt human apace flight?

The Columbia accident has revived the debate onwhether the rewards of human space exploration are worth the risks No. I was ateacher when men first landed on the moon in 1969, and I remember how it movedmy students and this country.（46） And we haven't ventured outward since then. That's 30 years toolong! America's human space-flight program is adrift, with no clear vision orgoals beyond the completion of the International Space Station.

I want NASA to establish a phased series of goalsover the next 20 years, including human visits to asteroids that cross theEarth's orbit, establishing a research and living facility for humans on themoon, and human expeditions to the surface of Mars and its moons.（47）

An astronaut is today's Christopher Columbus,who sailed into the unknown and discovered the Americas. The knowledge we gainfrom having actual people exploring can never be replaced by robots.（48） Robots are useful, but humans can dothings that robots can't.

The real obstacle we face in overcoming thedrift in the nation's human space-flight program is not technological and it'snot financial. （49）

The lesson from the Columbia accident is notthat humans don't belong in space.（50）

A Instead, we shouldhonor the memory of the lost astronauts by pushing our exploration of spacefuture.

B Astronauts are key tothis expanded exploration.

C It's the lack ofcommitment to get started.

D Until then, we shouldstop risking people's lives by sending them into space.

E It is now more than30 years since the last American left the surface of the moon and returned toEarth.

F Our ability to sendhumans into space and have them return gives us amazing information aboutourselves and our universe.

试题出处：http://www.examtiku.com/shiti/168588879.html
网考网参考答案：E、B、F、C、A
网考网解析：进入考试题库查看解析
大数据分析：根据网考网与考试题库的统计分析，该试题：
48%的考友选择了A选项
6%的考友选择了B选项
37%的考友选择了C选项
2%的考友选择了D选项
3%的考友选择了E选项
4%的考友选择了F选项
考友解析与评论：
 · 为什么选这个，有没有大神解答一下
 · 应该是E、B、F、C、A啊
 · 出题的估计语文没学好