（）used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space。

I’m going to Xi ’an next wek .Have you anything （）to your parents？

A.to take
B.to be taken
C.to be bought to
D.to buy

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A（）is a seller’s or lessor’s express or implied assurance to a buyer or lessee that the goods sold or leased meet certain quality standards.

A.bond
B.caveat emptor
C.warranty
D.collateral

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