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【单选题】
Windows 7 是一种（）的操作系统。A.
单任务
B.
单用户
C.
单用户/多任务
D.
网络
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】听力原文：Amy Morning, Dr. Carter. Im sorry to disturb you. But may I speak to you about my course? Dr. Carter Yes, come in, Amy. But anyway, I havent got long, because I have to give a lecture in half an ...
A.
She was unwell.
B.
She was worried,
C.
She was stressed.
D.
She was depresse
【简答题】I'm sorry to disturb you, but is that ? Who do you want to speak to? Jane Casting, please.
【单选题】听力原文：W: Professor Li, I'm so sorry to disturb you by asking you so many questions after class. You must feel very tired of that. M: Tired? There is nothing more interesting than helping my students so...
A.
It is very boring.
B.
It is very interesting.
C.
It is a waste of time.
D.
It is his responsibility.
【单选题】Sorry to disturb you, ______ could I speak to you for a few minutes?
A.
whether
B.
but
C.
if
D.
and
【单选题】听力原文：W：Professor Li，I am so sorry to disturb you by asking you so many questions after class．You must feel very tired of that． M：Tired? There is nothing more interesting than helping my students solve...
A.
It is very boring.
B.
It is very interesting.
C.
It is a waste of time.
D.
It is his responsibility.
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