2. 职称英语
  3. Although solutions to a problem are often the. fruit of direct investments i

Although solutions to a problem are often the. fruit of direct investments i

游客2025-04-25  53
问题     Although solutions to a problem are often the. fruit of direct investments in targeted research, the most revolutionary solutions tend to emerge from cross-pollination with other disciplines. Medical investigators might never have known of X rays, since they do not naturally occur in biological systems. It took a physicist, Wilhelm Conrad Rontgen, to discover them--light rays that could probe the body’s interior with nary a cut from a surgeon.
    Here’s a more recent example of cross-pollination. Soon after the Hubble Space Telescope was launched in April 1990, NASA engineers realized that the telescope’s primary mirror--which gathers and reflects the light from celestial objects into its cameras and spectrographs-had been ground to an incorrect shape. In other words, the billion-and-a-half-dollar telescope was producing fuzzy images. As if to make lemonade out of lemons, though, computer algorithms came to the rescue. Investigators developed a range of clever and innovative image-processing techniques to compensate for some of Hubble’s shortcomings. Tums out, maximizing the amount of information that could be extracted from a blurry astronomical image is technically identical to maximizing the amount of information that can be extracted from a mammogram. Soon the new techniques came into common use for detecting early signs of breast cancer. In 1997, for Hubble’s second servicing mission, shuttle astronauts swapped in a brand-new, high-resolution digital detector-designed to the demanding specs of astronomers whose careers are based on being able to see small, dim things in the cosmos. That technology is now incorporated in a minimally invasive, low-cost system for doing breast biopsies, the next stage after mammograms in the early diagnosis of cancer.
    Today, cross-pollination between science and society comes about when you have ample funding for ambitious, long-term projects. America has profited immensely from a generation of scientists and engineers who, instead of becoming lawyers or investment bankers, responded to a challenging vision posed in 1961 by President John F. Kennedy. "We intend to land a man on the Moon," proclaimed Kennedy, welcoming the citizenry to aid in the effort. That generation, and the one that followed, was the same generation of technologists who invented the personal computer. Bill Gates, co-founder of Microsoft, was thirteen years old when the U. S. landed an astronaut on the Moon; Steve Jobs, co-founder of Apple Computer, was fourteen. The PC did not arise from the mind of a banker or artist or professional athlete. It was invented and developed by a technically trained workforce, who had responded to the dream unfurled before them, and were thrilled to become scientists and engineers. [br] By saying "As if to make lemonade out of lemons, though, computer algorithms came to the rescue." (Line 5, Para. 2) the author means that ______ .
选项 A、scientists considered solving the problem as easy as making lemonade
B、scientists didn’t bow before difficulties and try to solve the problem
C、scientists had already calculated for such a problem so they’re calm
D、scientists could do nothing but waiting for others to solve the problem
答案 B
解析 这是科学家发现了哈勃望远镜的问题之后做出的反应。B“科学家没有向困难屈服，而是试图解决这个问题”与原文中computer algorithms came to the rescue不符。因此本题的答案是B。
转载请注明原文地址:https://www.tihaiku.com/zcyy/4053654.html
相关试题推荐
随机试题
最新回复(0)