• 2022-06-03
    The production of paper bags will not cause any energy consumption or waste any material.
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      – ( ) there any books in the bags? – No, there aren't A: is B: was C: are D: will be

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      I don't have ______ writing paper, I only have _____ chalks. A: any; any B: any; some C: some; some D: some; any

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      “Do you need any help with those heavy bags?” “No, thanks._____.”

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      I won’t waste your ______ (value) time any more.

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      Material balance methods provide a simple and effective methods for estimating ( ) at any stage of reservoir depletion。 A: production B: recovery factor C: original gas in place D: gas reserves