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简述什么是压电效应？什么是逆压电效应？试举例说明。

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Finish the exercises on specific verbs and their use in context.A. The following are verbs of specific manners of motion. Match the specific verbs with the adverbs that describe the manners. Refer to a dictionary if needed. The first one has been done for you as an example.

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E. 不稳定卧位