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【判断题】
用放大电路放大正弦波信号时,只有可能出现非线性失真,不可能出现频率失真。A.
正确
B.
错误
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举一反三
【单选题】–I feel tired and sleepy. –Why not stop __________?
A.
to relax
B.
breaking
C.
resting
D.
to work
【简答题】补全对话，每空一词。 A: 1 is the matter with you,Tom? B: I 2 feel well.I feel tired and have a h 3 . A: I am sorry to 4 that. Now open your mouth and say 'Ah', please. Well, you've got a bad cold. I am going to...
【单选题】---I feel tired and sleepy. ---Why not stop______?
A.
resting
B.
lying
C.
to relax
D.
to work
【单选题】— I feel tired and sleepy. — Why not consider_________?
A.
to relax
B.
breaking
C.
resting
D.
to work
【单选题】--- I feel tired and sleepy. --- Why not stop ______?
A.
relaxing
B.
to relax
C.
resting
D.
to work
【单选题】听力原文：W: I'm losing my sleep. I feel tired and sleepy all the time. I've got to do something about it. M: I'm so sorry for you. But what are you going to do? W: I want to move out of the dorm and rent ...
A.
She has caught a cold.
B.
She has a headache.
C.
She feels fired and sleepy all the time.
D.
She is ill.
【单选题】---I feel tired and sleepy. ---Why not stop ______?
A.
to relax
B.
relaxing
C.
resting
D.
to work
【单选题】I usually walk ______ the river bank over there, but today I feel tired and won't walk far.
A.
as long as, so
B.
as far as, that
C.
as often as, such
D.
as soon as, very
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