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【判断题】
合理的推理就能保证信念为真。()A.
正确
B.
错误
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举一反三
【简答题】测量电压放大倍数Au的测试数据记录3:测试条件为Rc=2kΩ,RL=2kΩ时,Ui= ( ) mV,Uo= ( ) V,Au= - ( )
【单选题】He appears to be strong and healthy, but, ______, he suffers from a weak heart. [ ]
A.
as a result
B.
in addition
C.
as a matter of fact
D.
in a word
【单选题】If I may be () further assistance () you, please let me know.
A.
of,for
B.
with,to
C.
of,to
D.
upon,to
【单选题】In 1990 he caught a serious illness, ______ effects he still suffers.
A.
that
B.
which
C.
what
D.
whose
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