【单选题】【消耗次数：1】
某教师按快倒键把录音磁带倒到开始，按下暂停键，再同时按下放音键和录音键，准备好后释放暂停开始录音。可开头的几秒总没有录上，其原因最可能是
①
磁带太松
②
磁带开始的几秒录在了无磁性的引带部分。
③
释放暂停后，录音机要等几秒才开始录音
④
录音机转动装置出现了故障
参考答案：
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相关题目
【单选题】
常用的盒式录音机的磁带宽度和走带速度分别为
①
3．81mm 4．79cm／s
②
4．79mm 3．81cm／s
③
3．81mm 4．7cm／s
④
8．31mm 4．79cm／s
【单选题】
下列对录音机使用叙述不正确的是
①
播放磁带节目时应将功能开关置于TAPE位置
②
录音一般只需按下RECORD键即可
③
倒带键标识为REW，快进键标识为FF
④
录音开始前和录音结束时都应先按暂停键才能避免录上按键声
【单选题】
甲有录音机一台，委托乙保管，后乙私下将该录音机卖给不知情的丙。该录音机在丙使用期间被丁偷走，后丁又遗失，被戊捡到。甲
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可以要求戊返还
②
不能要求丙返还
③
只能要求乙返还
④
只能要求丁返还
【单选题】
以下关于录音机的使用哪一项是不适宜的？（ ）。
①
录音时需将监听开关至于“ON”位置
②
想保存录制好的内容，可将磁带盒两侧的防抹片除掉
③
机内话筒录音，注意最佳录音距离为30一150厘米
④
录音时要防止杂音混入，可采用传输线录音
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①
have been
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are
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had been
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has been
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James plans to __________ offers from other companies before making a decision.
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explode
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expand
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expose
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explore
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bring up
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put on
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find out
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take in
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Although Mary is satisfied with her success, she wonders __________ will happen to he private life.
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how
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who
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what
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that
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- Excuse me, is this the right direction for the school?
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Well, no, you’re going in the wrong direction
②
No, don’t ask me
③
No, I don’t know
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Don’t go this way
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If the building project __________ by the end of this month is delayed, the construction company will be fine@@
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being completed
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is completed
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to be completed
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completed
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Between 1974 and 1997, the number of overseas vistors expanded_______27%.
①
by
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for
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to
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in
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That man alone over there – who is he?
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He is a student
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He is Doctor Took
③
A driver, I suppose
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He’s drunk
【单选题】
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①
Either;or
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Neither;nor
③
So; that
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Both; and
【单选题】
Jean did not have time to go to the concert last night because she was busy __________ for her examination.
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to prepare
②
to be prepared
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preparing
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being prepared