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主页 PTE听力 Listen Multiple-choice, choose single answer

    Listen to the recording and answer the multiple-choice question by selecting the correct response. Only one response is correct.

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What is the main idea that the speaker is trying to convey in her comments?

The dose of opiates needed to treat chronic pain is usually 80 milligrams. The rate of morphine addiction has not increased over the past 18 years. Governments can play a key role in chronic pain management. Authorization for the prescription of opiates is required every thirty days.
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