问题：
[单选题]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( )
A、磁带太松
B、磁带开始的几秒录在了无磁性的引带部分。
C、释放暂停后,录音机要等几秒才开始录音
D、录音机转动装置出现了故障
参考答案：
B
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