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Space Research
Does
walking on the moon make life better for people on earth {{U}} (51)
{{/U}}all the problems of our own world, why should we be spending huge{{U}}
(52) {{/U}}on trips to outer space Such questions as these are often
asked, especially{{U}} (53) {{/U}}those whose tax money is paying for
space explorations. The answers to these questions are many and{{U}} (54)
{{/U}}.
Up to now, the practical benefits resulting{{U}}
(55) {{/U}}space research have included the development of new methods
and skills, new processes, new services, new products, and even new companies
created to make use of what{{U}} (56) {{/U}}through space travel. Also
among the benefits{{U}} (57) {{/U}}better education (especially in
scientific subjects),{{U}} (
A. is
B. are
C. has
D. was
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{{B}}The Ideal Husband{{/B}}
Science now might
be able to explain women’s fascination with Brad Pitt’s face and George
Clooney’s eyes. Women seem to{{U}} (51) {{/U}}potential mates by how
masculine their features are, new research shows. Men with square jaws and
well-defined brow ridges are seen as good short-term partners,{{U}} (52)
{{/U}}those with more feminine traits such as a rounder face and fuller lips
are perceived as better long-term mates.
In the study by Daniel
Kruger at the US’s University of Michigan, 854 subjects viewed a series of{{U}}
(53) {{/U}}head shots that had been digitally changed to exaggerate or
minimize masculine traits They then{{U}} (54) {{/U}}questions about how
they expected the men in the photos
A. make
B. judge
C. date
D. meet
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One Good Reason to Let Smallpox
Live
It’s now a fair bet that we will never see
the total extinction of the smallpox virus. The idea was to cap the glorious
achievement of 1980, when smallpox was eradicated in the world, by destroying
the killer virus in the last two labs that are supposed to have it—one in the US
and one in Russia. If smallpox had truly gone from the planet, what point was
there in keeping these reserves
{{U}} (51)
{{/U}}reality, of course, it was naive to{{U}} (52) {{/U}}that everyone
would let {{U}} (53) {{/U}}of such a potent potential weapon.
Undoubtedly several nations still have {{U}} (54) {{/U}}vials.{{U}}
(55) {{/U}}the last "official" stocks of live virus bred mistrust of
the US and Russia,{{U}} (56) {{/U}}no
A. handle
B. tackle
C. deal
D. treat
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