It’s a new world, and we barely seem to have noticed. Places we (41) with inexpensive low-end manufacturing are going high-te

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问题 It’s a new world, and we barely seem to have noticed. Places we  (41)   with inexpensive low-end manufacturing are going high-tech in a big  (42)   The spotlight is mainly in China and India, for good  (43)   The Chinese economy is surging,  (44)   by increasingly sophisticated engineering, with products  (45)   from automobiles to semiconductors. India has nearly as  (46)   an economy, powered by a cheap English-speaking labor force who  (47)   in software and services.
    Along with these  (48)   giants, countries like Japan, South Korea and Singapore are also challenging America’s  (49)  . If present trends continue, 90% of all the world’s scientists and engineers will be living in Asia  (50)   2010, according to Nobel Prize winner Richard E. Smalley, professor of chemistry and physics at Rice University.

选项 A、until
B、in
C、by
D、before

答案C

解析
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