单项选择题


A．technology
B．subject
C．science
D．sciences
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单项选择题
A．exactB．accurateC．exaggeratedD．isolated
A．exact
B．accurate
C．exaggerated
D．isolated
单项选择题
A．advocatedB．advertisedC．acceleratedD．announced
A．advocated
B．advertised
C．accelerated
D．announced
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