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判斷題

Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）

答案：正確

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Of the two types of sentence stress, sense stress shows contrast, while logical stress shows meaning.（）

答案：錯誤

The back-chaining technique means the students repeat a sentence after the teacher, starting from the end part of the sentence and moving towards the beginning.（）

答案：正確

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