If a substance is dissolved in water or heated ， it may （）a gas.-查字典考试网

If a substance is dissolved in water or heated ， it may （）a gas.

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If a substance is dissolved in water or heated ， it may （）a gas.

A、giveinto
B、giveover
C、giveoff
D、giveaway

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正确答案：

答案解析：

「句意」如果一种物质溶解在水里或被加热，它可能释放出一种气体。

「难点」giveinto为非固定搭配;giveover意为“托付，交托”;giveoff意为“散发”;giveaway意为“送掉，分发(奖品)等”。

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