单项选择题

The scientists, (concerned about) the potential hazards, demanded (the latest) research finding (made) (publicly).

A. concerned about
B. the latest
C. made
D. publicly
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单项选择题
One expert (remarks) that a computer with (so) many tubes as the brain (has) neurons (would require) the Empire State Building to contain it.
A. remarks
B. so
C. has
D. would require
单项选择题
There is no denial that in the tropical area there is a high ______ of malari
A．A. incidentB. incidenceC. accidentD. precedent
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