-_______ can the batteries (電池) keep these cool iPhones and iPads working?

- For about ten hours.

A. How much B. How many

C. How long D. How often

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現(xiàn)

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觀

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要求：

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2．所寫內(nèi)容必須包括表格中所有的信息，語句通順，意思連貫，可適當發(fā)揮。

3．不得出現(xiàn)真實的人名、校名、地名等相關(guān)信息。

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