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【简答题】
A．guide B．model C．symbol D．direction
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【单选题】Questions are based on the following passage． Every human being, no matter what he is doing, gives off body heat．The usual problem is how to dispose of it．But the designers of the Johnstown campus of ...
A.
was difficult to collect
B.
came in a variety of forms
C.
was difficult to get rid of
D.
tended to be absorbed by physical objects