A.Fresh air from outside.
B.Heat in the building.
C.A hollow space.
D.A baseboard vent.
7.Why would a building like Eastgate not work efficiently in New York?
A.New York has less clear skies as Harare.
B.Its dampness affects the circulation of air.
C.New York covers a larger area than Harare.
D.Its temperature changes seasonally rather than daily.
8.The data in the last paragraph suggests Eastgate's temperature control system________.
A.allows a wide range of temperatures
B.functions well for most of the year
C.can recycle up to 30% of the air
D.works better in hot seasons
(三)
Researchers at the Johns
Hopkins University Applied Physics Laboratory(APL)
in Howard County, Maryland have designed a new humanlike robot. Its name is Roho Sally. The machine can be controlled from a distance and can be used to do work that is dangerous for human beings.
Roho Sally has two long arms with humanlike hands. She can use her fingers to pick up
small objects, examine them in detail and do most things that human hands can do. Each finger
contains a tiny motor, capable of squeezing 20 pounds of pinch force, enough to defuse a bomb
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