A．primitive B．prior C．previous D．preliminary
A. primitive
B. prior
C. previous
D. preliminary
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The word “subjects” (Line 1, Para. 4) refers to ________.
A. the performance tests used in the study of sleep deficit
B. special branches of knowledge that are being studied
C. people whose behavior. or reactions are being studied
D. the psychological consequences of sleep deficit
A．why B．whatC．how D．that
A. why
B. what
C. how
D. that
Advanced computer technology has ________ an answer to accurate weather forecasting.
A. set up
B. come up with
C. filled with
D. faced up to
比上年增加数目最少(但有所增加)的文物事业机构是（）。
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