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【判断题】
蓝色不适用大面积使用在卧室、餐厅A.
正确
B.
错误
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举一反三
【单选题】The mice in northern Europe move when ______.
A.
they give birth
B.
the weather is bad
C.
the place gets too crowded
D.
they haven't enough food
【简答题】属于感染性发热的疾病是（ ）
【单选题】What type of behavior did the mice show when certain types of nasal cells were turned off?
A.
normal
B.
funny
C.
not normal
【单选题】—Look at the noisy kids! —Haven’t you heard the saying “When the cat is away, the mice ______?”
A.
play
B.
played
C.
are playing
D.
will play
【简答题】已知输入语音信号中含最高音频分量 ,幅度为 。若 ,则增量调制量化器的量阶
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