题目内容：
What type of approach does the student apply to listening according to what he describes "When I listen to English tapes, I am always worried about my limited vocabulary． I tend tofigure out its actual meaning when coming across an unknown word, so that stop makes me miss thenext part of the speech．"
A.Detail-oriented approach． B.Top-down approach． C.Interactive approach． D.Bottom-up approach．
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