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【单选题】
按声道数量对音箱进行分类，5.1声道环绕立体声的发音点分别位于__________。A.
前左、前右、后左、后右、中置
B.
前左、前右、中左、中右、中置
C.
中左、中右、后左、后右、中置
D.
前左、前右、后左、后右、中置、超重低音
E.
前左、前右、中左、中右、中置、超重低音
F.
中左、中右、后左、后右、中置、超重低音
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【单选题】The following are the qualifications for a mandatory grant EXCEPT that______.
A.
one has been admitted to a designated course
B.
one has been in Britain for three years before a course begins
C.
one has attended a higher-education course for two years with a grant
D.
one has to participate in some examinations which are highly competitive
【单选题】______ the window, my finger was cut unexpectedly.
A.
Cleaning
B.
To clean
C.
While cleaning
D.
While I was cleaning
【简答题】Let's suppose it is a common day of 2060. Of course, things have changed and life is very different. Trips to the moon are being made every day. Taking a holiday on the moon today is as easy as taking...
【简答题】7×2.43.6×6.812.5×3.1．9.7×2.4 3.6×6.8 12.5×3.1．
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