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【单选题】
“混合声音”是向声音文件中插入一段或粘贴一段声音时，该声音将从插入点起与原有声音相混合。（ ）A.
正确
B.
错误
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举一反三
【单选题】I don't want to lend any more money to Tom he's already in debt ______ me.
A.
to
B.
of
C.
for
D.
with
【单选题】湿地一词最早在 ............................................................( )
A.
中国
B.
日本
C.
美国
D.
英国
E.
加拿大
【单选题】I’m sorry that I ( ) you had been there already.
A.
won’t know
B.
didn’t know
C.
don’t know
D.
haven’t known
【单选题】N—S diagram can used to substitute conventional program flow chart. In the following phrases, which does not belong to the basic control structures that contain? ( )
A.
sequence structure
B.
condition structure
C.
selection structure
D.
execution structure
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