A．vanishingB．stayingC．appearingD．dissolving

A．emergingB．disappearingC．appearingD．missing

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Which of the following procedures decreases the total dissolved solids concentration in th

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【C3】A．disposeB．dissectC．dissolveD．displace

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In Britain, a session of parliament lasts for______unless the Prime Minister dissolves par

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After a long walk, we finally found a shelter______for the night.A．to stayB．stayingC．to st

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【C15】A．workingB．stayingC．movingD．shopping

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________________[A] diluted [B] dissolved [C] determining [D] diffused

答案解析