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【简答题】
通用示波器外扫描方式有( )和X-Y方式两种。
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反馈参考答案：
举一反三
【单选题】Tom didn ’ t go to bed _____ he finished his homework.
A.
until
B.
if
C.
when
D.
as soon as
【单选题】_____Tom didn ’ t go to school?
A.
Do you know how
B.
Why do you know
C.
How you know why
D.
Do you know why
【简答题】关闭且锁紧信号判断
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【简答题】从对话后的方框中选择适当的选项补全对话。 A. Did you use to play the piano? B. He was the only little kid at the picnic! C. Yeah! I wasn’t very outgoing. D. Wow! People sure change. E. Don’t you remember me? F. ...
【简答题】补全对话。（有两项多余）（5分） A.Did you use to play the piano? B.You’ve changed a lot. C.Don’t you remember me? D.I am on the swim team. E.That is right. F.I wasn’t very outgoing. G.You look different. Girl: Hey...
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